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L-Theanine

L-Theanine is amino-acid analogue found in tea. It is used in supplements positioned for relaxation; focus, although evidence strength and legally permitted claims depend on the exact form, dose and jurisdiction.

Mood regulation
Brain health
Sleep

Origin of Ingredient

Camellia sinensis leaves or fermentation/synthesis

History of Ingredient

L-Theanine moved from food, biochemical or specialist use into modern supplements as purification, fermentation, extraction and standardisation technologies developed.

Scientific Makeup of Ingredient

gamma-glutamylethylamide

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