Meng X., Sang S., Zhu N., Lu H., Sheng S., Lee M.J., Ho C.T., Yang C.S. (2002) Identification and characterization of methylated and ring-fission metabolites of tea catechins formed in humans, mice, and rats. Chem Res Toxicol 15:1042-50 PubMed (12184788)

Compound Mean content
(-)-Epigallocatechin 3-O-gallate 139 mg/g dry weight
(-)-Epigallocatechin 110 mg/g dry weight
(-)-Epicatechin 32 mg/g dry weight