... Part: LeafAppearance: Yellow brown Fine PowderActive Ingredients: Polyphenols, EGCG,Natural L-theanine,Catechins Odor: Tea perfumeMolecular Formula: C22H18O11(Tea ... to 99% Catechins, 10% to 99% EGCG, 20%-98% Natural L-theanineGreen Tea extract Benefits 1.Reduce kidney stones2.Treat ... . package size: 350x150mm 0.065cubic meter/one drum 100% Natural Green Tea Extract With Polyphenols,Catechins,EGCG