Ingredient

Organic L-theanine

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Source
Not animal-derived
Allergen
No
Role in food
L-theanine is added to foods and beverages to promote relaxation and improve focus without …

What it is

L-theanine is an amino acid found naturally in tea leaves, particularly green tea. It is also produced synthetically for use as a dietary supplement and food additive.

Why it's used

L-theanine is added to foods and beverages to promote relaxation and improve focus without causing drowsiness. It is often found in energy drinks, teas, and other functional beverages.

Health notes

In the U.S., L-theanine is Generally Recognized As Safe (GRAS) by the FDA for use in certain foods. It is thought to affect brain waves, promoting a state of calm alertness. International bodies like EFSA have also evaluated L-theanine, and JECFA has evaluated it and set an acceptable daily intake. Research is ongoing into its effects, but it is generally considered safe at typical consumption levels.

Allergen info

L-theanine is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Products containing Organic L-theanine

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Energy Mexican Lime Sparkling Water, Lime Ardor Organic Energy Mexican Lime Sparkling Water, Lime Soda 0kcal 0Protein 0Fat 0Carbs Energy Pink Grapefruit Sparkling Water, Grapefruit Ardor Organic Energy Pink Grapefruit Sparkling Water, Grapefruit Water 0kcal 0Protein 0Fat 0Carbs Energy Tropical Mango Sparkling Water, Mango Ardor Organic Energy Tropical Mango Sparkling Water, Mango Water 0kcal 0Protein 0Fat 0Carbs Energy Vanilla Blackberry Sparkling Water, Vanilla; Blackberry Ardor Organic Energy Vanilla Blackberry Sparkling Water, Vanilla; Blackberry Water 0kcal 0Protein 0Fat 0Carbs FunGals, LLC Dark Roast Ground Coffee Coffee 0kcal 0Protein 0Fat 0Carbs
Sea Salt (4 products) Organic Flavor (4 products) Carbonated Purified Water (4 products) Organic Caffeine (4 products) From Green Tea (4 products) Organic Coffee (1 products) Organic Lion's Mane (1 products) Organic Chaga (1 products) Adaptogen Blend 1200mg (1 products)

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.