Theaflavin with reddish in color, is a phytochemical of Flavan-3-ols, in the group of Flavonoids (polyphenols), formed in tea leaves during fermentation. Health Benefits 1. Skin cancer In the investigation of the tumor-inhibiting property of black tea polyphenol, theaflavin, found that The treatment of theaflavin downregulated the gelatinolytic activity, mRNA and protein expression of MMP-2. …