Damiana 1000 mg, 60 Vegan Capsules

What Damiana Is
Damiana is Turnera diffusa, a small aromatic shrub from Mexico, Central America and the Caribbean, used traditionally as an aphrodisiac and as a tea. Remedy's Damiana supplies 1000 mg of leaf per vegan capsule, with 60 capsules per bottle, as a single ingredient.
It has a long tradition and a thin research base, and this page states both.

1000 mg per capsule: Single-ingredient damiana leaf.

60 capsules: Two months at 1 daily.

The full claim map is in our damiana overview.

Supplement Facts

Amount Per Serving
Amount
% Daily Value

Damiana leaf (Turnera diffusa)
1000 mg
*

* Daily Value not established.
Made in the USA.

What the Evidence Actually Shows
The definitive review of the genus is unusually direct, and we would rather print its conclusion than a benefits list.

What the review reported
Detail

Species in the genus
135 accepted, about 6 used medicinally

Bioactivities identified
12, from antianxiety to aphrodisiac

How most were tested
Chemical, cell-based or animal assays only

Human studies
2, both using multi-ingredient preparations

Compounds identified
22 flavonoids, caffeine, 7 cyanogenic glycosides

Compound linked to an effect
Apigenin, in an animal pain model

Most of damiana's reported activities have been investigated only in chemical, cell-based or animal assays, and both human studies used preparations containing other ingredients.[1]Ethnobotany, phytochemistry, and bioactivity of the genus Turnera (Passifloraceae) with a focus on damiana - Turnera diffusa — Journal of Ethnopharmacology (2014) View source That leaves no trial of damiana on its own.
The Aphrodisiac Question
This is the reputation the plant is sold on, and it deserves the two facts that actually sit behind it.

Study
What it tested
Result

Rat study, 2009
Turnera diffusa at 20 to 80 mg per kg
More males resumed a second series at 80 mg/kg

Same study
Locomotor activity and anxiety
No associated increase in either

Same study
Main compounds in the active extract
Caffeine, arbutine, flavonoids

Human trial, 2001
A formula with 6 ingredients
73.5% improved against 37.2% on placebo

That formula
Ingredients
Ginseng, ginkgo, damiana, L-arginine, vitamins, minerals

The rat result is real and it is in rats.[2]Turnera diffusa Wild (Turneraceae) recovers sexual behavior in sexually exhausted males — Journal of Ethnopharmacology (2009) View source The human result is real and it belongs to a six-ingredient formula in which damiana was one component.[3]A double-blind placebo-controlled study of ArginMax, a nutritional supplement for enhancement of female sexual function — Journal of Sex and Marital Therapy (2001) View source The detail is in is damiana an aphrodisiac.
Whether damiana changes oestrogen is one of the most searched questions about it, and the laboratory answer points two ways at once.

We make no hormone claim for this herb.[4]Anti-aromatase activity of the constituents from damiana (Turnera diffusa) — Journal of Ethnopharmacology (2008) View source The reasoning is in damiana for women and hormones.
How to Use It
There is no established dose, because there is no human trial of damiana on its own.

Question
Practical answer

How much
1 capsule of 1000 mg daily, per the label

When
Earlier in the day, since caffeine is a constituent

With food
Either; food helps if it upsets your stomach

Bottle life
2 months at 1 daily

Trial dose in humans
None exists

Amounts and why no conversion is possible are in dosage and how to take it.
Safety and Who Should Avoid It
With no large human safety trial, the honest cautions come from tradition and from what the plant contains.

Situation
Position

Pregnant or planning pregnancy
Avoid; Turnera species are traditionally used as abortives

On glucose-lowering medication
Ask first; antidiabetic activity is reported in animals

Liver disease
Ask, as with any herbal product

Caffeine sensitive
Avoid an evening dose

Heavy daily tea drinking
Moderate it; the genus contains 7 cyanogenic glycosides

Smoking or vaping the leaf
We do not recommend it; 0 studies support it

The full list is in side effects and who should avoid it.
Capsules, Tea and the Rest
Tea is how most people meet damiana, and it is searched far more than the capsule.

Brewing and tradition are in damiana tea benefits and how to make it, and the intoxication question in does damiana make you high.
Why Choose Remedy's Damiana
One ingredient, a stated amount, and an evidence summary that does not oversell a tradition.

What you get
Why it matters

1000 mg damiana leaf per capsule
A stated amount, not a proprietary blend

Single ingredient
Any effect or reaction traces to 1 thing

Vegan capsule
Cellulose, glycerin and water

60 capsules
Two months at 1 daily

Honest positioning
A traditional herb, with 0 human trials of its own

Frequently Asked Questions

What does damiana do to the body? +
Very little is established in humans. A 2014 review found its 12 reported activities were tested mostly in cell or animal assays.

Is damiana a real aphrodisiac? +
It is a real traditional one. The best evidence is in rats at 80 mg per kg, and the human study tested a formula with 6 ingredients.

Does damiana increase estrogen? +
In a dish it did 2 opposite things: inhibited aromatase and showed estrogenic activity. There are 0 human hormone measurements.

Does damiana increase testosterone? +
There are 0 human trials measuring testosterone with damiana. It is a marketing claim rather than a research finding.

Is damiana psychedelic? +
No. In the rat study its effects were not associated with increased locomotor activity or anxiety-like behaviour, which is 2 relevant measures.

Does damiana cause a high? +
No controlled study describes one. Caffeine is 1 documented constituent, which is the most mundane explanation for any mild lift.

How much should I take? +
One capsule of 1000 mg daily. There is no established dose, because 0 human trials of damiana alone exist.

Is it safe to take damiana daily? +
Everyday use appears undramatic on a thin evidence base. The 2 firm exclusions are pregnancy and glucose-lowering medication without asking.

Who should avoid damiana? +
Anyone pregnant, anyone on glucose-lowering medication, and anyone with liver disease. Those are 3 clear exclusions.

What is damiana tea good for? +
Traditionally, relaxation and as an aphrodisiac. There are 0 human trials of damiana tea for any outcome.

Does damiana contain caffeine? +
Caffeine was 1 of 3 main compounds identified in the extract that worked in rats, and it appears in the genus generally. Take it earlier in the day.

How long does 1 bottle last? +
Sixty capsules is 2 months at 1 daily.

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Ashwagandha 1000 mg — a much larger human trial base for stress and sleep

Dong Quai 1000 mg — a traditional women's herb with its own separate cautions