Polyphenols are organic compounds found in fruits and vegetables. Polyphenols in plants are secondary plant metabolites and can be categorized as flavonoids and non-flavonoids. Apple polyphenols may have beneficial effects on cancer, inflammation, and antioxidation. They are found in the apple itself, but most polyphenols are found in the apple peel.Phloretin Is a new foreign research and development out of a new natural skin whitening agent, mainly in apples, pears and other juicy fruit peel and root bark. Phloretin can be used in facial masks, skin care creams, lotions and serums. For the pearl white crystalline powder, soluble in ethanol and acetone, almost insoluble in water.