Unfermented Camellia sinensis leaves containing polyphenol catechins, chiefly Epigallocatechin-3-gallate (EGCG), and the relaxing amino acid L-theanine. EGCG enhances endothelial nitric oxide synthase, reduces LDL oxidation, and boosts thermogenesis, while L-theanine promotes relaxed alpha-wave mental alertness.
Educational information only — never stop or change a prescribed medication without talking to your prescriber first.
Contains natural caffeine (approx 25-40 mg per cup); limit evening intake if sensitive. High doses of isolated EGCG on an empty stomach have rarely been linked to liver stress; take extract capsules with food.
Evidence level: Strong
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