Ingredient

L-teaactive

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Source
Not animal-derived
Allergen
No
Role in food
L-Theanine is added to beverages and dietary supplements for its purported calming effects. It …

What it is

L-Theanine is an amino acid found naturally in tea leaves, particularly green tea. It is typically produced synthetically for use in supplements and food products.

Why it's used

L-Theanine is added to beverages and dietary supplements for its purported calming effects. It is often found in 'lifestyle' or 'relaxation' drinks, teas, and other functional foods.

Health notes

L-Theanine is generally recognized as safe (GRAS) by the FDA for use in certain foods. Studies suggest it may promote relaxation without causing drowsiness. International bodies like EFSA have also evaluated L-Theanine. Evidence regarding its effects on stress and cognitive function is ongoing.

Allergen info

L-Theanine is not derived from any of the nine major allergens. It does not contain gluten.

Products containing L-teaactive

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Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.