INGREDIENT CONTEXT · NOT A PRODUCT ENDORSEMENT

L-Theanine

This ingredient has an older entry in the research library. Its claimed benefits and doses have not been independently verified here. Start with the decision guide and check the original research before acting.

For general safety guidance, read NIH NCCIH: Using dietary supplements wisely. There is no verified ingredient-specific recommendation on this page.

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Forms listed in the legacy entry

Capsules · Powder

Listing a form does not establish superior absorption or a clinical benefit.

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Library material about L-Theanine — verify the sources

GuideL-Theanine: How It Works, What the Evidence Says, and How to Dose ItLegacy library material — check the original sources.GuideThe Evidence-Based Sleep Stack: Magnesium, Glycine & L-TheanineLegacy library material — check the original sources.AnswerDoes L-Theanine Caffeine Attention Randomized Trial work?Legacy library material — check the original sources.AnswerIs L-Theanine Caffeine Attention Randomized Trial safe?Legacy library material — check the original sources.AnswerWhat does the evidence say about L-Theanine Caffeine Attention Randomized Trial?Legacy library material — check the original sources.AnswerDoes Theanine Executive Function Randomized Trial work?Legacy library material — check the original sources.
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