Description
L-theanine is the calming amino acid in green tea, and it works at 200 to 400 mg by raising alpha brain wave activity within 30 to 45 minutes of oral intake. Remedy's Nutrition L-Theanine delivers 1000 mg per vegan capsule with no fillers, lab-tested for purity in a cGMP facility in the USA.
This page covers what L-theanine actually does in the brain, the 8 evidence-backed benefits, how to dose for stress, sleep, and focus, the caffeine stack ratio that works, drug interactions across 10 classes, and who should not take it.
Quick Answer: L-Theanine 1000mg
L-theanine promotes calm focus at 200 to 400 mg without drowsiness, with peak effect in 30 to 45 minutes. The 1000 mg capsule allows flexible dosing (split for 250 to 500 mg) or full dose for higher-need users. Pair with caffeine in a 2:1 ratio for focus, or take 30 to 60 minutes before bed for sleep.
Key Takeaways
L-theanine works at 200 to 400 mg in 30 to 45 minutes.
Calm focus comes from alpha brain wave activation, not sedation.
Caffeine stack ratio is 2:1 L-theanine to caffeine.
Safe for 4 to 8 weeks of daily use at 200 to 400 mg.
Drug interactions span 5 classes including BP and SSRIs.
Avoid in pregnancy and BP under 90/60 mmHg.
Remedy's offers 1000 mg vegan capsules with no fillers.
What Is L-Theanine?
L-theanine is a non-protein amino acid found almost exclusively in the leaves of Camellia sinensis (the tea plant) and in trace amounts in the Boletus badius mushroom. It accounts for roughly 1 to 2% of the dry weight of tea leaves and crosses the blood-brain barrier within 30 to 45 minutes of oral intake.[1]L-Theanine Absorption and Pharmacokinetics — PubMed View source
Discovered: isolated from Japanese green tea in 1949.
Content in tea: 25 to 60 mg per 8 oz cup of green tea.
Onset: 30 to 45 minutes; half-life 60 to 75 minutes.
Studied range: 100 to 900 mg/day, with 200 mg the most-tested single dose.
Unlike most amino acids, L-theanine does not build muscle or repair tissue. Its sole pharmacological role is in the central nervous system, where it modulates GABA, dopamine, and serotonin pathways while raising alpha brain wave activity. This is why a cup of green tea calms you down even though it contains caffeine. For a full breakdown of the science, see our complete L-theanine guide.
Why Remedy's Nutrition L-Theanine
Remedy's Nutrition L-Theanine 1000 mg sets the bar on three measurable specs: dose per capsule, purity, and capsule format. Most retail L-theanine products deliver 100 to 200 mg per capsule with fillers; ours delivers a full 1000 mg per vegan capsule, allowing flexible partial dosing for stress (200 to 400 mg) or full dose for higher-need users.
What You Get
Why It Matters
1000 mg L-theanine per vegan capsule
5x to 10x the dose of typical retail L-theanine. Split for 250 to 500 mg or take whole for higher-need users.
Zero fillers, binders, or dyes
No magnesium stearate, no titanium dioxide, no artificial colors. Just pure L-theanine and a vegan HPMC capsule.
Made in USA, cGMP-certified facility
FDA-registered facility with batch-level quality control and lab verification of every production run.
Lab-tested for purity
Third-party testing confirms L-theanine content matches label claim and product is free of heavy metals.
60 vegan capsules per bottle
60 to 240 day supply depending on dose. Suitable for vegan, vegetarian, gluten-free, and non-GMO diets.
Non-habit forming
No documented tolerance or dependence across published trials up to 8 weeks of daily use.
The Top 8 Evidence-Backed Benefits of L-Theanine
L-theanine has been studied in 40+ human clinical trials. The strongest evidence concentrates on stress reduction, sleep quality, attention, and the caffeine stack — areas with multiple randomized controlled trials showing statistically significant results versus placebo.[2]L-Theanine for Stress: Randomized Controlled Trial — PubMed View source
Benefit
Key Clinical Finding
Effective Dose
Acute stress reduction
Lowered salivary alpha-amylase and self-reported stress in 5+ RCTs (Kimura 2007 and replications)
200 mg, 30 to 45 min pre-stressor
Sleep quality
Improved subjective sleep quality and reduced sleep latency in 4 RCTs without sedation
200 to 400 mg, 30 to 60 min pre-bed
Calm focus with caffeine
Improved attention switching, reaction time, and reduced jitter in 6+ caffeine combo trials
200 mg L-theanine + 100 mg caffeine
Anxiety adjunct
Reduced anxiety in GAD trial as adjunct to antidepressant (Sarris 2019)
200 mg twice daily
ADHD attention support
Improved sleep efficiency and attention in pediatric ADHD trial (Lyon 2011, boys 8 to 12)
400 mg/day for 6 weeks
Alpha brain wave activation
Measurable EEG alpha increase within 30 to 45 min, sustained 1 to 3 hours
200 mg single dose
Blood pressure modulation
Lowered systolic BP 5 to 8 mmHg in stressed adults across multiple trials
200 mg pre-stressor
Mental clarity in MCI
Improved memory and attention in older adults with mild cognitive impairment (Park 2011)
1670 mg green tea extract
How L-Theanine Works in the Brain
L-theanine produces calm focus through 4 documented mechanisms that act simultaneously: alpha brain wave activation, GABA receptor modulation, glutamate competition, and dopamine plus serotonin balancing. The combined effect is a relaxed but alert mental state, distinct from sedation or stimulation.[3]L-Theanine NMDA Glutamate Receptor Mechanism — PubMed View source
Mechanism
What It Does
Functional Effect
Alpha brain wave boost
Increases 8 to 13 Hz alpha-frequency EEG activity in occipital and parietal cortex within 30 to 45 min
Relaxed-alert state similar to meditation; reduced mental chatter
GABA receptor modulation
Partial agonist at GABA-A receptors, raising central GABA tone without full sedation
Calm without drowsiness; better sleep onset
NMDA glutamate competition
Structural analog of glutamate; competes at NMDA receptors, dampening excitatory signaling
Reduced stress reactivity; lower cortisol spike under load
Dopamine and serotonin balance
Modulates striatal dopamine and raises brain serotonin in animal studies
Mood support; complementary to caffeine's dopamine release
How Much L-Theanine Should You Take?
L-theanine dosage ranges from 100 mg to 900 mg per day in published trials, with most healthy adults responding to 200 to 400 mg. Start at the low end of the range for your use case and adjust upward over 1 to 2 weeks. The 1000 mg Remedy's capsule allows precise partial dosing by splitting the contents.
Use Case
Effective Dose
Timing
Duration
Acute stress (pre-event)
200 mg
30 to 45 min before stressor
Single dose as needed
Daily stress management
200 mg, 1 to 2x/day
Morning and/or midday
4 to 8 weeks then reassess
Sleep support
200 to 400 mg
30 to 60 min pre-bed
Nightly as needed
Caffeine stack (focus)
200 mg + 100 mg caffeine
With morning coffee
Daily as needed
Anxiety adjunct (with Rx)
200 mg, 2x/day
With breakfast and lunch
Doctor-supervised, 8 weeks
ADHD attention support
400 mg/day
Morning, with doctor guidance
6 weeks then reassess
Higher need / non-responders
400 to 600 mg
Split across day
Reassess after 4 weeks
For a step-by-step dosing protocol including how to find your minimum effective dose, see our L-theanine dosage guide.
How to Measure 100, 200, or 400 mg From a 1000 mg Capsule
Most L-theanine on the shelf is fixed at 100 or 200 mg per capsule, so a 400 mg pre-bed dose means swallowing 2 to 4 pills. One 1000 mg vegan capsule that opens cleanly covers every studied dose from a single bottle, and the arithmetic takes seconds.
Target Dose
Portion of a 1000 mg Capsule
Typical Use
100 mg
About one-tenth of the contents
First trial dose, morning coffee pairing, afternoon top-up
200 mg
One-fifth
Most-studied single dose: acute stress, focus, pre-event calm
250 mg
One-quarter
Conservative daily dose, matches the FDA GRAS serving reference
400 mg
Two-fifths
Pre-bed sleep support and the pediatric ADHD trial dose
1000 mg
Whole capsule
Above typical need — practitioner guidance only
Two methods work in practice. Open the capsule and divide the powder into 4 or 5 even lines, then take one. Or empty the contents into a measured glass of water and drink the matching fraction — L-theanine dissolves readily and tastes faintly sweet.
Start low: 100 mg for 3 to 5 days before increasing.
Where most adults settle: 200 mg per dose, 1 to 2 times daily.
Practical ceiling: 600 mg/day without supervision; 900 mg/day is the highest studied.
Bottle math: 60 capsules at 200 mg portions equals 300 doses.
When to Take L-Theanine
Timing of L-theanine matters more than total daily dose because the 60 to 75 minute half-life means effects fade within 2 to 3 hours of a single dose. Match the dose timing to when you need the calm-focus window, not on a fixed schedule.
Time of Day
Purpose
Dose
Pair With
Morning (6 to 9 AM)
Calm-focus workday start
200 mg
Coffee or tea (100 to 150 mg caffeine)
Mid-morning (10 to 11 AM)
Deep focus block
100 to 200 mg
Optional second coffee
Pre-stressor (event-based)
Presentation, meeting, exam
200 mg, 30 to 45 min prior
Water only
Mid-afternoon (2 to 4 PM)
Avoid energy slump without caffeine
100 to 200 mg
Solo
Evening (6 to 8 PM)
Wind-down transition
200 mg
Herbal tea (no caffeine)
Pre-bed (30 to 60 min before)
Sleep onset support
200 to 400 mg
Magnesium glycinate optional
L-Theanine and Caffeine: The Perfect Stack
The L-theanine plus caffeine stack at a 2:1 ratio (200 mg L-theanine + 100 mg caffeine) is the most-tested combination in published cognitive trials. The pairing improves attention switching, reaction time, and reduces caffeine jitter compared to caffeine alone across 6+ RCTs.[4]L-Theanine Plus Caffeine Attention Switching — PubMed View source
2:1 ratio: 200 mg L-theanine with 100 mg caffeine — the standard tested pairing.
Espresso (about 80 mg): pair with a 150 to 200 mg portion.
Energy drink (about 200 mg): pair with 400 mg to hold the ratio.
Cut-off: stop caffeine 8 hours before bed; L-theanine alone is fine after that.
The mechanism is complementary: caffeine blocks adenosine receptors (alertness), while L-theanine raises alpha brain waves (calm focus). The result is the focused alertness that experienced tea drinkers have valued for centuries, replicated in modern coffee plus L-theanine routines. For the complete stacking protocol including ratios and what to avoid, see our L-theanine and caffeine guide.
L-Theanine for Anxiety and Stress
L-theanine for anxiety is best used at 200 mg taken 30 to 45 minutes before a known stressor, and 200 mg twice daily was the schedule tested as an add-on in generalized anxiety disorder. It lowers physical stress markers without sedation, so performance stays intact.[5]L-Theanine Adjunctive Treatment of Generalized Anxiety Disorder — PubMed View source
Situation
Dose
Timing
What to Expect
Presentation, exam, interview
200 mg
30 to 45 min before
Slower heart-rate climb, steadier delivery, no dulling
Daily background stress
200 mg, 1 to 2x
Morning and midday
Fewer stress spikes across the workday
GAD adjunct (prescriber-led)
200 mg, 2x daily
Breakfast and lunch
Studied for 8 weeks alongside an antidepressant
Panic-type surges
Not first-line
—
Seek clinical care; L-theanine is not a rescue medication
Stress relief here is measurable rather than subjective: a systematic review of L-theanine for stress and anxiety found consistent reductions in physiological stress markers at 200 to 400 mg.[6]Green Tea Amino Acid L-Theanine and the Ability to Manage Stress and Anxiety: Systematic Review — PubMed View source For dose-by-symptom detail, see our guide to l-theanine dosing for anxiety.
L-Theanine for Sleep
L-theanine for sleep works at 200 to 400 mg taken 30 to 60 minutes before bed, with effects on subjective sleep quality documented across 4 randomized trials. Unlike melatonin (which shifts circadian timing) or GABA agonists (which cause sedation), L-theanine works by reducing pre-sleep mental chatter and calming the stress response that keeps you awake.[7]L-Theanine Sleep Quality Pediatric RCT — PubMed View source
Dose: 200 to 400 mg, 30 to 60 minutes before lights out.
Best for: a busy mind at bedtime rather than a shifted body clock.
Not for: circadian problems such as jet lag — that is melatonin territory.
Next morning: no documented grogginess in trials up to 8 weeks.
This is why L-theanine is non-sedating: you do not feel drugged or groggy, and it does not lengthen sleep duration on its own. It improves sleep quality, not sleep amount. For dosing, timing, and what to stack it with, read our L-theanine for sleep guide.
L-Theanine for Focus and ADHD
L-theanine supports focus mainly through the caffeine pairing: 200 mg L-theanine with 100 mg caffeine improved attention switching and reduced distractibility across a systematic review of cognitive trials. For diagnosed ADHD the published evidence is 1 pediatric sleep trial, not a treatment claim.[8]Cognitive-Enhancing Outcomes of Caffeine and L-Theanine: Systematic Review — PubMed View source
Deep work block: 200 mg with the first coffee of the day.
Afternoon slump: 100 mg on its own, no added caffeine after 2 PM.
Pediatric ADHD data: 400 mg/day for 6 weeks improved actigraphy sleep in boys ages 8 to 12.
Adolescents 13 to 17: no published trial data — prescriber guidance required.
Not a substitute: prescribed stimulants remain first-line treatment.
Students and shift workers use the same 2 doses differently: 200 mg with caffeine for the demanding block, then 100 mg alone later to stay calm without extending caffeine into the sleep window. Our l-theanine for ADHD and focus guide covers the prescriber-led protocol in full.
Green Tea vs L-Theanine Capsules
A brewed cup of green tea supplies roughly 25 to 60 mg of L-theanine, so reaching the 200 mg research dose means 4 to 8 cups — and 100 to 300 mg of caffeine along with it. Capsules separate the calm from the stimulant.[9]Acute Effects of Tea Constituents L-Theanine, Caffeine and EGCG on Cognition — PubMed View source
Source
L-Theanine per Serving
Caffeine
To Reach 200 mg
Green tea, 8 oz cup
25 to 60 mg
25 to 45 mg
4 to 8 cups, plus 100 to 300 mg caffeine
Matcha, 1 tsp
20 to 45 mg
60 to 70 mg
Caffeine climbs faster than theanine
Black tea, 8 oz cup
5 to 25 mg
40 to 70 mg
Lowest theanine-to-caffeine ratio
1000 mg capsule, 200 mg portion
200 mg
0 mg
1 portion, caffeine-free
Tea stays the better ritual and the better antioxidant source. Capsules win whenever the dose has to be exact, caffeine-free, or taken within 6 hours of bedtime.
L-Theanine vs Ashwagandha, GABA, and Melatonin
L-theanine, ashwagandha, GABA, and melatonin are 4 popular calming supplements with fundamentally different mechanisms and use cases. Picking the right one depends on your goal: acute calm-focus, chronic stress, sleep onset, or circadian reset.
Supplement
Best For
Onset
Mechanism
L-Theanine
Acute calm focus, pre-stressor, sleep quality
30 to 45 min
Alpha brain waves, GABA modulation
Ashwagandha
Chronic stress, cortisol reduction, daily resilience
2 to 4 weeks
HPA axis modulation, adaptogen
GABA
Direct GABA receptor stimulation (BBB crossing controversial)
30 to 60 min if effective
GABA-A agonism (peripheral)
Melatonin
Jet lag, shift work, circadian reset
30 to 60 min
MT1 and MT2 receptor agonism
For the full 4-way decision tree and which to stack with what, see our L-theanine vs ashwagandha, GABA, and melatonin comparison.
What to Stack L-Theanine With
L-theanine layers cleanly with 4 common supplements because none of them share its alpha-wave mechanism. Magnesium is the most-searched pairing: 200 mg L-theanine with magnesium glycinate in the evening targets mental chatter and muscle tension at the same time.
Pairing
Why It Works
Typical Timing
Magnesium glycinate
Mineral cofactor for muscle and nerve relaxation; no mechanistic overlap with L-theanine
200 to 400 mg each, 30 to 60 min pre-bed
GABA
A 100 mg GABA plus 200 mg L-theanine mixture shortened sleep latency in published research
Evening only
Ashwagandha
Multi-week HPA-axis adaptation covers the chronic stress side L-theanine does not
Ashwagandha daily, L-theanine as needed
Caffeine
2:1 ratio (200 mg + 100 mg) is the most-tested cognitive combination
Morning and early afternoon
Melatonin
Fixes circadian timing while L-theanine handles pre-sleep mental chatter
1 to 3 mg melatonin, 60 min pre-bed
Add 1 supplement at a time over 1 to 2 weeks. Stacking 3 new products the same night makes it impossible to tell which one worked, and which one caused the grogginess.[10]GABA and L-Theanine Mixture Decreases Sleep Latency — PubMed View source
Side Effects and Drug Interactions
L-theanine side effects are uncommon and mild in trials, with headache, mild nausea, and lowered blood pressure being the 3 most reported. The 28-day safety study at 200 mg/day in 30 healthy adults showed zero serious adverse events.[11]L-Theanine 28-Day Safety Trial — PubMed View source Drug interactions span 10 medication classes worth discussing with a prescriber.
Drug Class
Interaction Mechanism
What to Do
Blood pressure medications
Additive BP-lowering (L-theanine drops systolic 5 to 8 mmHg)
Monitor BP; lower dose if symptomatic hypotension
Stimulants (Adderall, Vyvanse)
May blunt prescribed stimulant focus boost
Discuss with prescriber before stacking
Sedatives, benzodiazepines
Additive central calming via GABA modulation
Avoid combining without doctor guidance
Antidepressants (SSRIs)
Theoretical serotonin modulation
Discuss before adding; monitor mood
Chemotherapy agents
Animal data shows altered drug levels for some agents
Do not use during chemo without oncologist clearance
Alcohol
Additive sedation in higher doses; potentiates calming
Avoid combining; especially driving
Levodopa (Parkinson's)
Theoretical dopamine modulation
Discuss with neurologist
Anticoagulants
No clear interaction documented
Generally safe; monitor INR if concerned
Anticonvulsants
Theoretical glutamate modulation
Discuss with neurologist before use
MAOIs
Theoretical serotonin and dopamine interaction
Avoid without psychiatric supervision
For the full safety review including red-flag symptoms that warrant stopping, see our L-theanine side effects and drug interactions guide.
Who Should Not Take L-Theanine
L-theanine is well-tolerated by healthy adults, but 5 groups should avoid it or use only with medical supervision. The most important contraindication is pregnancy, where safety data does not exist.
Group
Reason
Action
Pregnancy and breastfeeding
No human safety data; FDA GRAS excludes pregnant and lactating women
Avoid; discuss with OB before use
Children under 8
Pediatric safety data limited to one ADHD trial in boys 8 to 12 (Lyon 2011)
Only with pediatrician supervision for specific indications
Low blood pressure (under 90/60)
L-theanine drops systolic BP 5 to 8 mmHg, may worsen hypotension
Avoid or use very low dose with monitoring
Schizophrenia (without psychiatric care)
Used as adjunct in trials only under psychiatric supervision
Do not self-supplement; requires prescriber
People on multiple CNS medications
Additive sedation, BP, or mood effects possible
Discuss full medication list with doctor
What's in the Bottle
Remedy's Nutrition L-Theanine comes in a 60-capsule bottle with a single, simple formula: 1000 mg of pure L-theanine per vegan capsule. No fillers, no binders, no artificial colors, no titanium dioxide, no magnesium stearate. The capsule itself is plant-based HPMC (hydroxypropyl methylcellulose), suitable for vegan, vegetarian, and gluten-free diets.
Spec
Detail
L-theanine per capsule
1000 mg
Capsules per bottle
60
Supply duration
60 days at 1000 mg/day; up to 240 days at 250 mg/day
Capsule type
Vegan HPMC (plant-based)
Other ingredients
None — zero fillers, binders, or dyes
Manufacturing
Made in USA, FDA-registered cGMP facility
Testing
Third-party lab tested for purity and potency
Allergens
Free of gluten, soy, dairy, eggs, nuts, shellfish
Diet compatibility
Vegan, vegetarian, gluten-free, non-GMO
Frequently Asked Questions
How much L-theanine should I take per day? +
Healthy adults start at 100 to 200 mg per day and adjust up to 400 mg as needed. The maximum studied daily dose is 900 mg, with a practical safety ceiling of 600 mg. A 28-day safety trial at 200 mg/day showed zero adverse events in 30 healthy adults.
How fast does L-theanine work? +
L-theanine reaches peak blood levels in 30 to 50 minutes after oral intake, with alpha brain wave changes measurable within 30 to 45 minutes. The half-life is 60 to 75 minutes, so the calm-focus window is 1 to 3 hours per dose. No buildup is needed; first-dose effects are reliable.
Is L-theanine safe to take every day? +
Yes, daily L-theanine at 200 to 400 mg is safe for healthy adults based on 4-week and 8-week clinical trials. The FDA has granted GRAS status to L-theanine at intakes up to 250 mg/serving. No tolerance, dependence, or withdrawal has been documented in published trials lasting up to 8 weeks.
Does L-theanine make you sleepy? +
No, L-theanine is non-sedating at typical 200 to 400 mg doses. It promotes calm alertness via alpha brain waves rather than the drowsiness caused by GABA agonists or antihistamines. This is why it works as a daytime focus tool and also for sleep, where it lowers pre-sleep mental chatter without causing morning grogginess.
Can I take L-theanine with coffee? +
Yes, the L-theanine plus caffeine stack at a 2:1 ratio (200 mg L-theanine + 100 mg caffeine) is the most-tested combination in cognitive trials. The pairing improves attention switching, reaction time, and reduces caffeine jitter compared to caffeine alone across 6+ RCTs.
What are the side effects of L-theanine? +
L-theanine side effects are uncommon and mild. The 3 most reported in trials are headache, mild nausea, and lowered blood pressure (5 to 8 mmHg systolic). No serious adverse events occurred in a 28-day safety study at 200 mg/day. Discontinue if blood pressure drops below 90/60 mmHg.
Does L-theanine interact with medications? +
Yes, L-theanine can interact with 5 medication classes: blood pressure medications (additive BP-lowering), stimulants like Adderall (may blunt focus boost), sedatives (additive calm), chemotherapy (animal data only), and SSRIs (theoretical serotonin modulation). Consult a prescriber before stacking with any prescription.
Is 1000 mg of L-theanine too much? +
A 1000 mg L-theanine capsule is convenient for partial dosing (split for 250 to 500 mg) or for users who tolerate higher doses. Doses up to 900 mg/day have been used safely in published trials. Most healthy adults find 200 to 400 mg sufficient; start at 250 mg (1/4 capsule) and adjust.
When should I take L-theanine for sleep? +
Take 200 to 400 mg of L-theanine 30 to 60 minutes before bed for sleep support. The 60 to 75 minute half-life means it covers the sleep-onset window without lingering into morning. Pair with sleep hygiene (cool room, no screens 60 min before bed) for best result across 4 RCTs.
Can children take L-theanine? +
Pediatric use should be supervised by a doctor. The single pediatric RCT (Lyon 2011) dosed 400 mg/day in boys aged 8 to 12 with ADHD for 6 weeks with no safety signals. The 2017 pediatric safety review concluded L-theanine has acceptable tolerability when prescribed for specific indications. Do not give to children under 8 without medical guidance.
Is L-theanine safe during pregnancy? +
No, L-theanine is not recommended during pregnancy or breastfeeding due to lack of human safety data across all 3 trimesters. The FDA GRAS status (250 mg/serving) applies to non-pregnant adults only. Most OBs advise avoiding L-theanine in pregnancy outside specific medical guidance. Discuss any supplement with your provider before use during pregnancy.
What makes Remedy's L-theanine different? +
Remedy's Nutrition L-Theanine delivers 1000 mg per vegan capsule with zero fillers, binders, or artificial colors. The product is made in the USA in a cGMP-certified facility and lab-tested for purity. Each bottle contains 60 capsules (60 to 240 day supply depending on dose). Suitable for vegan, vegetarian, and gluten-free diets.
Is 100 mg of L-theanine enough? +
For many adults, yes — 100 mg is a sensible 3 to 5 day starting dose, especially paired with 50 to 100 mg of caffeine. Most trials that show stress and attention effects used 200 mg, so move up if 100 mg feels flat. From a 1000 mg capsule, 100 mg is roughly one-tenth of the contents.
Can I take L-theanine with magnesium? +
Yes. A common evening pairing is 200 to 400 mg L-theanine 30 to 60 minutes before bed with 200 to 400 mg of magnesium glycinate. The 2 mechanisms do not overlap and no interaction is documented. Add one at a time over 1 to 2 weeks so you know which one is working.
How many capsules are in a bottle and how long does it last? +
Each bottle holds 60 vegan capsules of 1000 mg. At a 200 mg portion that is 300 doses, at 400 mg it is 150 doses, and taken whole it is a 60 day supply. Most adults using 200 mg once or twice daily get 5 to 10 months from one bottle.
You May Also Like
Magnesium Glycinate 1000 mg — evening mineral support that pairs with L-theanine for muscle tension and sleep onset
Ashwagandha 1000 mg — multi-week adaptogen for chronic stress, complementary to acute calm focus
GABA Calm 1000 mg — GABA-based evening blend studied alongside L-theanine for sleep latency
Melatonin 3 mg — circadian timing support when the issue is schedule rather than mental chatter
This page covers what L-theanine actually does in the brain, the 8 evidence-backed benefits, how to dose for stress, sleep, and focus, the caffeine stack ratio that works, drug interactions across 10 classes, and who should not take it.
Quick Answer: L-Theanine 1000mg
L-theanine promotes calm focus at 200 to 400 mg without drowsiness, with peak effect in 30 to 45 minutes. The 1000 mg capsule allows flexible dosing (split for 250 to 500 mg) or full dose for higher-need users. Pair with caffeine in a 2:1 ratio for focus, or take 30 to 60 minutes before bed for sleep.
Key Takeaways
L-theanine works at 200 to 400 mg in 30 to 45 minutes.
Calm focus comes from alpha brain wave activation, not sedation.
Caffeine stack ratio is 2:1 L-theanine to caffeine.
Safe for 4 to 8 weeks of daily use at 200 to 400 mg.
Drug interactions span 5 classes including BP and SSRIs.
Avoid in pregnancy and BP under 90/60 mmHg.
Remedy's offers 1000 mg vegan capsules with no fillers.
What Is L-Theanine?
L-theanine is a non-protein amino acid found almost exclusively in the leaves of Camellia sinensis (the tea plant) and in trace amounts in the Boletus badius mushroom. It accounts for roughly 1 to 2% of the dry weight of tea leaves and crosses the blood-brain barrier within 30 to 45 minutes of oral intake.[1]L-Theanine Absorption and Pharmacokinetics — PubMed View source
Discovered: isolated from Japanese green tea in 1949.
Content in tea: 25 to 60 mg per 8 oz cup of green tea.
Onset: 30 to 45 minutes; half-life 60 to 75 minutes.
Studied range: 100 to 900 mg/day, with 200 mg the most-tested single dose.
Unlike most amino acids, L-theanine does not build muscle or repair tissue. Its sole pharmacological role is in the central nervous system, where it modulates GABA, dopamine, and serotonin pathways while raising alpha brain wave activity. This is why a cup of green tea calms you down even though it contains caffeine. For a full breakdown of the science, see our complete L-theanine guide.
Why Remedy's Nutrition L-Theanine
Remedy's Nutrition L-Theanine 1000 mg sets the bar on three measurable specs: dose per capsule, purity, and capsule format. Most retail L-theanine products deliver 100 to 200 mg per capsule with fillers; ours delivers a full 1000 mg per vegan capsule, allowing flexible partial dosing for stress (200 to 400 mg) or full dose for higher-need users.
What You Get
Why It Matters
1000 mg L-theanine per vegan capsule
5x to 10x the dose of typical retail L-theanine. Split for 250 to 500 mg or take whole for higher-need users.
Zero fillers, binders, or dyes
No magnesium stearate, no titanium dioxide, no artificial colors. Just pure L-theanine and a vegan HPMC capsule.
Made in USA, cGMP-certified facility
FDA-registered facility with batch-level quality control and lab verification of every production run.
Lab-tested for purity
Third-party testing confirms L-theanine content matches label claim and product is free of heavy metals.
60 vegan capsules per bottle
60 to 240 day supply depending on dose. Suitable for vegan, vegetarian, gluten-free, and non-GMO diets.
Non-habit forming
No documented tolerance or dependence across published trials up to 8 weeks of daily use.
The Top 8 Evidence-Backed Benefits of L-Theanine
L-theanine has been studied in 40+ human clinical trials. The strongest evidence concentrates on stress reduction, sleep quality, attention, and the caffeine stack — areas with multiple randomized controlled trials showing statistically significant results versus placebo.[2]L-Theanine for Stress: Randomized Controlled Trial — PubMed View source
Benefit
Key Clinical Finding
Effective Dose
Acute stress reduction
Lowered salivary alpha-amylase and self-reported stress in 5+ RCTs (Kimura 2007 and replications)
200 mg, 30 to 45 min pre-stressor
Sleep quality
Improved subjective sleep quality and reduced sleep latency in 4 RCTs without sedation
200 to 400 mg, 30 to 60 min pre-bed
Calm focus with caffeine
Improved attention switching, reaction time, and reduced jitter in 6+ caffeine combo trials
200 mg L-theanine + 100 mg caffeine
Anxiety adjunct
Reduced anxiety in GAD trial as adjunct to antidepressant (Sarris 2019)
200 mg twice daily
ADHD attention support
Improved sleep efficiency and attention in pediatric ADHD trial (Lyon 2011, boys 8 to 12)
400 mg/day for 6 weeks
Alpha brain wave activation
Measurable EEG alpha increase within 30 to 45 min, sustained 1 to 3 hours
200 mg single dose
Blood pressure modulation
Lowered systolic BP 5 to 8 mmHg in stressed adults across multiple trials
200 mg pre-stressor
Mental clarity in MCI
Improved memory and attention in older adults with mild cognitive impairment (Park 2011)
1670 mg green tea extract
How L-Theanine Works in the Brain
L-theanine produces calm focus through 4 documented mechanisms that act simultaneously: alpha brain wave activation, GABA receptor modulation, glutamate competition, and dopamine plus serotonin balancing. The combined effect is a relaxed but alert mental state, distinct from sedation or stimulation.[3]L-Theanine NMDA Glutamate Receptor Mechanism — PubMed View source
Mechanism
What It Does
Functional Effect
Alpha brain wave boost
Increases 8 to 13 Hz alpha-frequency EEG activity in occipital and parietal cortex within 30 to 45 min
Relaxed-alert state similar to meditation; reduced mental chatter
GABA receptor modulation
Partial agonist at GABA-A receptors, raising central GABA tone without full sedation
Calm without drowsiness; better sleep onset
NMDA glutamate competition
Structural analog of glutamate; competes at NMDA receptors, dampening excitatory signaling
Reduced stress reactivity; lower cortisol spike under load
Dopamine and serotonin balance
Modulates striatal dopamine and raises brain serotonin in animal studies
Mood support; complementary to caffeine's dopamine release
How Much L-Theanine Should You Take?
L-theanine dosage ranges from 100 mg to 900 mg per day in published trials, with most healthy adults responding to 200 to 400 mg. Start at the low end of the range for your use case and adjust upward over 1 to 2 weeks. The 1000 mg Remedy's capsule allows precise partial dosing by splitting the contents.
Use Case
Effective Dose
Timing
Duration
Acute stress (pre-event)
200 mg
30 to 45 min before stressor
Single dose as needed
Daily stress management
200 mg, 1 to 2x/day
Morning and/or midday
4 to 8 weeks then reassess
Sleep support
200 to 400 mg
30 to 60 min pre-bed
Nightly as needed
Caffeine stack (focus)
200 mg + 100 mg caffeine
With morning coffee
Daily as needed
Anxiety adjunct (with Rx)
200 mg, 2x/day
With breakfast and lunch
Doctor-supervised, 8 weeks
ADHD attention support
400 mg/day
Morning, with doctor guidance
6 weeks then reassess
Higher need / non-responders
400 to 600 mg
Split across day
Reassess after 4 weeks
For a step-by-step dosing protocol including how to find your minimum effective dose, see our L-theanine dosage guide.
How to Measure 100, 200, or 400 mg From a 1000 mg Capsule
Most L-theanine on the shelf is fixed at 100 or 200 mg per capsule, so a 400 mg pre-bed dose means swallowing 2 to 4 pills. One 1000 mg vegan capsule that opens cleanly covers every studied dose from a single bottle, and the arithmetic takes seconds.
Target Dose
Portion of a 1000 mg Capsule
Typical Use
100 mg
About one-tenth of the contents
First trial dose, morning coffee pairing, afternoon top-up
200 mg
One-fifth
Most-studied single dose: acute stress, focus, pre-event calm
250 mg
One-quarter
Conservative daily dose, matches the FDA GRAS serving reference
400 mg
Two-fifths
Pre-bed sleep support and the pediatric ADHD trial dose
1000 mg
Whole capsule
Above typical need — practitioner guidance only
Two methods work in practice. Open the capsule and divide the powder into 4 or 5 even lines, then take one. Or empty the contents into a measured glass of water and drink the matching fraction — L-theanine dissolves readily and tastes faintly sweet.
Start low: 100 mg for 3 to 5 days before increasing.
Where most adults settle: 200 mg per dose, 1 to 2 times daily.
Practical ceiling: 600 mg/day without supervision; 900 mg/day is the highest studied.
Bottle math: 60 capsules at 200 mg portions equals 300 doses.
When to Take L-Theanine
Timing of L-theanine matters more than total daily dose because the 60 to 75 minute half-life means effects fade within 2 to 3 hours of a single dose. Match the dose timing to when you need the calm-focus window, not on a fixed schedule.
Time of Day
Purpose
Dose
Pair With
Morning (6 to 9 AM)
Calm-focus workday start
200 mg
Coffee or tea (100 to 150 mg caffeine)
Mid-morning (10 to 11 AM)
Deep focus block
100 to 200 mg
Optional second coffee
Pre-stressor (event-based)
Presentation, meeting, exam
200 mg, 30 to 45 min prior
Water only
Mid-afternoon (2 to 4 PM)
Avoid energy slump without caffeine
100 to 200 mg
Solo
Evening (6 to 8 PM)
Wind-down transition
200 mg
Herbal tea (no caffeine)
Pre-bed (30 to 60 min before)
Sleep onset support
200 to 400 mg
Magnesium glycinate optional
L-Theanine and Caffeine: The Perfect Stack
The L-theanine plus caffeine stack at a 2:1 ratio (200 mg L-theanine + 100 mg caffeine) is the most-tested combination in published cognitive trials. The pairing improves attention switching, reaction time, and reduces caffeine jitter compared to caffeine alone across 6+ RCTs.[4]L-Theanine Plus Caffeine Attention Switching — PubMed View source
2:1 ratio: 200 mg L-theanine with 100 mg caffeine — the standard tested pairing.
Espresso (about 80 mg): pair with a 150 to 200 mg portion.
Energy drink (about 200 mg): pair with 400 mg to hold the ratio.
Cut-off: stop caffeine 8 hours before bed; L-theanine alone is fine after that.
The mechanism is complementary: caffeine blocks adenosine receptors (alertness), while L-theanine raises alpha brain waves (calm focus). The result is the focused alertness that experienced tea drinkers have valued for centuries, replicated in modern coffee plus L-theanine routines. For the complete stacking protocol including ratios and what to avoid, see our L-theanine and caffeine guide.
L-Theanine for Anxiety and Stress
L-theanine for anxiety is best used at 200 mg taken 30 to 45 minutes before a known stressor, and 200 mg twice daily was the schedule tested as an add-on in generalized anxiety disorder. It lowers physical stress markers without sedation, so performance stays intact.[5]L-Theanine Adjunctive Treatment of Generalized Anxiety Disorder — PubMed View source
Situation
Dose
Timing
What to Expect
Presentation, exam, interview
200 mg
30 to 45 min before
Slower heart-rate climb, steadier delivery, no dulling
Daily background stress
200 mg, 1 to 2x
Morning and midday
Fewer stress spikes across the workday
GAD adjunct (prescriber-led)
200 mg, 2x daily
Breakfast and lunch
Studied for 8 weeks alongside an antidepressant
Panic-type surges
Not first-line
—
Seek clinical care; L-theanine is not a rescue medication
Stress relief here is measurable rather than subjective: a systematic review of L-theanine for stress and anxiety found consistent reductions in physiological stress markers at 200 to 400 mg.[6]Green Tea Amino Acid L-Theanine and the Ability to Manage Stress and Anxiety: Systematic Review — PubMed View source For dose-by-symptom detail, see our guide to l-theanine dosing for anxiety.
L-Theanine for Sleep
L-theanine for sleep works at 200 to 400 mg taken 30 to 60 minutes before bed, with effects on subjective sleep quality documented across 4 randomized trials. Unlike melatonin (which shifts circadian timing) or GABA agonists (which cause sedation), L-theanine works by reducing pre-sleep mental chatter and calming the stress response that keeps you awake.[7]L-Theanine Sleep Quality Pediatric RCT — PubMed View source
Dose: 200 to 400 mg, 30 to 60 minutes before lights out.
Best for: a busy mind at bedtime rather than a shifted body clock.
Not for: circadian problems such as jet lag — that is melatonin territory.
Next morning: no documented grogginess in trials up to 8 weeks.
This is why L-theanine is non-sedating: you do not feel drugged or groggy, and it does not lengthen sleep duration on its own. It improves sleep quality, not sleep amount. For dosing, timing, and what to stack it with, read our L-theanine for sleep guide.
L-Theanine for Focus and ADHD
L-theanine supports focus mainly through the caffeine pairing: 200 mg L-theanine with 100 mg caffeine improved attention switching and reduced distractibility across a systematic review of cognitive trials. For diagnosed ADHD the published evidence is 1 pediatric sleep trial, not a treatment claim.[8]Cognitive-Enhancing Outcomes of Caffeine and L-Theanine: Systematic Review — PubMed View source
Deep work block: 200 mg with the first coffee of the day.
Afternoon slump: 100 mg on its own, no added caffeine after 2 PM.
Pediatric ADHD data: 400 mg/day for 6 weeks improved actigraphy sleep in boys ages 8 to 12.
Adolescents 13 to 17: no published trial data — prescriber guidance required.
Not a substitute: prescribed stimulants remain first-line treatment.
Students and shift workers use the same 2 doses differently: 200 mg with caffeine for the demanding block, then 100 mg alone later to stay calm without extending caffeine into the sleep window. Our l-theanine for ADHD and focus guide covers the prescriber-led protocol in full.
Green Tea vs L-Theanine Capsules
A brewed cup of green tea supplies roughly 25 to 60 mg of L-theanine, so reaching the 200 mg research dose means 4 to 8 cups — and 100 to 300 mg of caffeine along with it. Capsules separate the calm from the stimulant.[9]Acute Effects of Tea Constituents L-Theanine, Caffeine and EGCG on Cognition — PubMed View source
Source
L-Theanine per Serving
Caffeine
To Reach 200 mg
Green tea, 8 oz cup
25 to 60 mg
25 to 45 mg
4 to 8 cups, plus 100 to 300 mg caffeine
Matcha, 1 tsp
20 to 45 mg
60 to 70 mg
Caffeine climbs faster than theanine
Black tea, 8 oz cup
5 to 25 mg
40 to 70 mg
Lowest theanine-to-caffeine ratio
1000 mg capsule, 200 mg portion
200 mg
0 mg
1 portion, caffeine-free
Tea stays the better ritual and the better antioxidant source. Capsules win whenever the dose has to be exact, caffeine-free, or taken within 6 hours of bedtime.
L-Theanine vs Ashwagandha, GABA, and Melatonin
L-theanine, ashwagandha, GABA, and melatonin are 4 popular calming supplements with fundamentally different mechanisms and use cases. Picking the right one depends on your goal: acute calm-focus, chronic stress, sleep onset, or circadian reset.
Supplement
Best For
Onset
Mechanism
L-Theanine
Acute calm focus, pre-stressor, sleep quality
30 to 45 min
Alpha brain waves, GABA modulation
Ashwagandha
Chronic stress, cortisol reduction, daily resilience
2 to 4 weeks
HPA axis modulation, adaptogen
GABA
Direct GABA receptor stimulation (BBB crossing controversial)
30 to 60 min if effective
GABA-A agonism (peripheral)
Melatonin
Jet lag, shift work, circadian reset
30 to 60 min
MT1 and MT2 receptor agonism
For the full 4-way decision tree and which to stack with what, see our L-theanine vs ashwagandha, GABA, and melatonin comparison.
What to Stack L-Theanine With
L-theanine layers cleanly with 4 common supplements because none of them share its alpha-wave mechanism. Magnesium is the most-searched pairing: 200 mg L-theanine with magnesium glycinate in the evening targets mental chatter and muscle tension at the same time.
Pairing
Why It Works
Typical Timing
Magnesium glycinate
Mineral cofactor for muscle and nerve relaxation; no mechanistic overlap with L-theanine
200 to 400 mg each, 30 to 60 min pre-bed
GABA
A 100 mg GABA plus 200 mg L-theanine mixture shortened sleep latency in published research
Evening only
Ashwagandha
Multi-week HPA-axis adaptation covers the chronic stress side L-theanine does not
Ashwagandha daily, L-theanine as needed
Caffeine
2:1 ratio (200 mg + 100 mg) is the most-tested cognitive combination
Morning and early afternoon
Melatonin
Fixes circadian timing while L-theanine handles pre-sleep mental chatter
1 to 3 mg melatonin, 60 min pre-bed
Add 1 supplement at a time over 1 to 2 weeks. Stacking 3 new products the same night makes it impossible to tell which one worked, and which one caused the grogginess.[10]GABA and L-Theanine Mixture Decreases Sleep Latency — PubMed View source
Side Effects and Drug Interactions
L-theanine side effects are uncommon and mild in trials, with headache, mild nausea, and lowered blood pressure being the 3 most reported. The 28-day safety study at 200 mg/day in 30 healthy adults showed zero serious adverse events.[11]L-Theanine 28-Day Safety Trial — PubMed View source Drug interactions span 10 medication classes worth discussing with a prescriber.
Drug Class
Interaction Mechanism
What to Do
Blood pressure medications
Additive BP-lowering (L-theanine drops systolic 5 to 8 mmHg)
Monitor BP; lower dose if symptomatic hypotension
Stimulants (Adderall, Vyvanse)
May blunt prescribed stimulant focus boost
Discuss with prescriber before stacking
Sedatives, benzodiazepines
Additive central calming via GABA modulation
Avoid combining without doctor guidance
Antidepressants (SSRIs)
Theoretical serotonin modulation
Discuss before adding; monitor mood
Chemotherapy agents
Animal data shows altered drug levels for some agents
Do not use during chemo without oncologist clearance
Alcohol
Additive sedation in higher doses; potentiates calming
Avoid combining; especially driving
Levodopa (Parkinson's)
Theoretical dopamine modulation
Discuss with neurologist
Anticoagulants
No clear interaction documented
Generally safe; monitor INR if concerned
Anticonvulsants
Theoretical glutamate modulation
Discuss with neurologist before use
MAOIs
Theoretical serotonin and dopamine interaction
Avoid without psychiatric supervision
For the full safety review including red-flag symptoms that warrant stopping, see our L-theanine side effects and drug interactions guide.
Who Should Not Take L-Theanine
L-theanine is well-tolerated by healthy adults, but 5 groups should avoid it or use only with medical supervision. The most important contraindication is pregnancy, where safety data does not exist.
Group
Reason
Action
Pregnancy and breastfeeding
No human safety data; FDA GRAS excludes pregnant and lactating women
Avoid; discuss with OB before use
Children under 8
Pediatric safety data limited to one ADHD trial in boys 8 to 12 (Lyon 2011)
Only with pediatrician supervision for specific indications
Low blood pressure (under 90/60)
L-theanine drops systolic BP 5 to 8 mmHg, may worsen hypotension
Avoid or use very low dose with monitoring
Schizophrenia (without psychiatric care)
Used as adjunct in trials only under psychiatric supervision
Do not self-supplement; requires prescriber
People on multiple CNS medications
Additive sedation, BP, or mood effects possible
Discuss full medication list with doctor
What's in the Bottle
Remedy's Nutrition L-Theanine comes in a 60-capsule bottle with a single, simple formula: 1000 mg of pure L-theanine per vegan capsule. No fillers, no binders, no artificial colors, no titanium dioxide, no magnesium stearate. The capsule itself is plant-based HPMC (hydroxypropyl methylcellulose), suitable for vegan, vegetarian, and gluten-free diets.
Spec
Detail
L-theanine per capsule
1000 mg
Capsules per bottle
60
Supply duration
60 days at 1000 mg/day; up to 240 days at 250 mg/day
Capsule type
Vegan HPMC (plant-based)
Other ingredients
None — zero fillers, binders, or dyes
Manufacturing
Made in USA, FDA-registered cGMP facility
Testing
Third-party lab tested for purity and potency
Allergens
Free of gluten, soy, dairy, eggs, nuts, shellfish
Diet compatibility
Vegan, vegetarian, gluten-free, non-GMO
Frequently Asked Questions
How much L-theanine should I take per day? +
Healthy adults start at 100 to 200 mg per day and adjust up to 400 mg as needed. The maximum studied daily dose is 900 mg, with a practical safety ceiling of 600 mg. A 28-day safety trial at 200 mg/day showed zero adverse events in 30 healthy adults.
How fast does L-theanine work? +
L-theanine reaches peak blood levels in 30 to 50 minutes after oral intake, with alpha brain wave changes measurable within 30 to 45 minutes. The half-life is 60 to 75 minutes, so the calm-focus window is 1 to 3 hours per dose. No buildup is needed; first-dose effects are reliable.
Is L-theanine safe to take every day? +
Yes, daily L-theanine at 200 to 400 mg is safe for healthy adults based on 4-week and 8-week clinical trials. The FDA has granted GRAS status to L-theanine at intakes up to 250 mg/serving. No tolerance, dependence, or withdrawal has been documented in published trials lasting up to 8 weeks.
Does L-theanine make you sleepy? +
No, L-theanine is non-sedating at typical 200 to 400 mg doses. It promotes calm alertness via alpha brain waves rather than the drowsiness caused by GABA agonists or antihistamines. This is why it works as a daytime focus tool and also for sleep, where it lowers pre-sleep mental chatter without causing morning grogginess.
Can I take L-theanine with coffee? +
Yes, the L-theanine plus caffeine stack at a 2:1 ratio (200 mg L-theanine + 100 mg caffeine) is the most-tested combination in cognitive trials. The pairing improves attention switching, reaction time, and reduces caffeine jitter compared to caffeine alone across 6+ RCTs.
What are the side effects of L-theanine? +
L-theanine side effects are uncommon and mild. The 3 most reported in trials are headache, mild nausea, and lowered blood pressure (5 to 8 mmHg systolic). No serious adverse events occurred in a 28-day safety study at 200 mg/day. Discontinue if blood pressure drops below 90/60 mmHg.
Does L-theanine interact with medications? +
Yes, L-theanine can interact with 5 medication classes: blood pressure medications (additive BP-lowering), stimulants like Adderall (may blunt focus boost), sedatives (additive calm), chemotherapy (animal data only), and SSRIs (theoretical serotonin modulation). Consult a prescriber before stacking with any prescription.
Is 1000 mg of L-theanine too much? +
A 1000 mg L-theanine capsule is convenient for partial dosing (split for 250 to 500 mg) or for users who tolerate higher doses. Doses up to 900 mg/day have been used safely in published trials. Most healthy adults find 200 to 400 mg sufficient; start at 250 mg (1/4 capsule) and adjust.
When should I take L-theanine for sleep? +
Take 200 to 400 mg of L-theanine 30 to 60 minutes before bed for sleep support. The 60 to 75 minute half-life means it covers the sleep-onset window without lingering into morning. Pair with sleep hygiene (cool room, no screens 60 min before bed) for best result across 4 RCTs.
Can children take L-theanine? +
Pediatric use should be supervised by a doctor. The single pediatric RCT (Lyon 2011) dosed 400 mg/day in boys aged 8 to 12 with ADHD for 6 weeks with no safety signals. The 2017 pediatric safety review concluded L-theanine has acceptable tolerability when prescribed for specific indications. Do not give to children under 8 without medical guidance.
Is L-theanine safe during pregnancy? +
No, L-theanine is not recommended during pregnancy or breastfeeding due to lack of human safety data across all 3 trimesters. The FDA GRAS status (250 mg/serving) applies to non-pregnant adults only. Most OBs advise avoiding L-theanine in pregnancy outside specific medical guidance. Discuss any supplement with your provider before use during pregnancy.
What makes Remedy's L-theanine different? +
Remedy's Nutrition L-Theanine delivers 1000 mg per vegan capsule with zero fillers, binders, or artificial colors. The product is made in the USA in a cGMP-certified facility and lab-tested for purity. Each bottle contains 60 capsules (60 to 240 day supply depending on dose). Suitable for vegan, vegetarian, and gluten-free diets.
Is 100 mg of L-theanine enough? +
For many adults, yes — 100 mg is a sensible 3 to 5 day starting dose, especially paired with 50 to 100 mg of caffeine. Most trials that show stress and attention effects used 200 mg, so move up if 100 mg feels flat. From a 1000 mg capsule, 100 mg is roughly one-tenth of the contents.
Can I take L-theanine with magnesium? +
Yes. A common evening pairing is 200 to 400 mg L-theanine 30 to 60 minutes before bed with 200 to 400 mg of magnesium glycinate. The 2 mechanisms do not overlap and no interaction is documented. Add one at a time over 1 to 2 weeks so you know which one is working.
How many capsules are in a bottle and how long does it last? +
Each bottle holds 60 vegan capsules of 1000 mg. At a 200 mg portion that is 300 doses, at 400 mg it is 150 doses, and taken whole it is a 60 day supply. Most adults using 200 mg once or twice daily get 5 to 10 months from one bottle.
You May Also Like
Magnesium Glycinate 1000 mg — evening mineral support that pairs with L-theanine for muscle tension and sleep onset
Ashwagandha 1000 mg — multi-week adaptogen for chronic stress, complementary to acute calm focus
GABA Calm 1000 mg — GABA-based evening blend studied alongside L-theanine for sleep latency
Melatonin 3 mg — circadian timing support when the issue is schedule rather than mental chatter
SKU: 692599528616