Know what you're putting in your body.

158 herbs, nutrients, and compounds. What the science says, what tradition knew, and what to watch for. Founding members keep this running.

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STRESS & ANXIETY

Damiana

Turnera diffusa

also known as damiana leaf

Weak (modern) / moderate (traditional)

A small Central American shrub used by the Maya and other Indigenous peoples for centuries, then adopted into Mexican folk medicine and later European herbalism. Damiana's primary traditional reputation is as an aphrodisiac — a claim that has stuck through several centuries despite limited modern clinical evidence. The herb is genuinely calming and mood-supportive at usual doses.

Long traditional use as an aphrodisiac across Central American and Mexican folk medicine
Mild calming and mood-supportive action at usual doses
Traditional use as a mild nervous system tonic, particularly for stress combined with low mood
May modestly support libido in both men and women, though clinical evidence is limited
Found in some Mexican liqueurs, including the original margarita recipe
Generally well tolerated as tea or tincture in moderate amounts

Limited modern safety data — most use is based on long traditional history rather than clinical studies

Use caution with diabetes medication — may lower blood sugar

Use caution with sedative medications

Skip during pregnancy

Skip during nursing

High doses can cause insomnia, headache, or nausea

Some products labeled damiana contain only minimal damiana with other added herbs — check sourcing

Smoking damiana is a folk practice; the smoke contains the same combustion-related concerns as any inhaled herb

Memorial Sloan Kettering About Herbs · EMA Herbal Medicinal Product Monographs · American Botanical Council HerbMedPro · Memorial Sloan Kettering About Herbs · EMA Herbal Medicinal Product Monographs · American Botanical Council HerbMedPro

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