Piceatannol is a phytochemical in the class of Stilbenoids, found abundantly in grapes, etc. Health Benefits 1. Anti cancers In the determination of the apoptotic effects of piceatannol and myricetin, naturally occurring polyphenols in red wine, alone or in combination, in two human cell lines: HL-60 (leukemia) and HepG2 (hepatoma), found that on the signaling …