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Product Description:L-Theanine, also gamma-glutamylethylamide or 5-N-ethyl-glutamine, is an amino acid and a glutamic acid analog commonly found in tea (infusions of Camellia sinensis), primarily in black tea,and also in the basidiomycete mushroom Boletus badius and in guayusa.More specifically, this compound is called L-theanine, being the L- amino acid.

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