Skin whitening compositions based on hydroxyaryl alkyl ketones and their isosteric derivatives

摘要

I have discovered that certain hydroxyaryl or polyhydroxyaryl compounds that contain an alkyl carbon side chain with a hetero-atom group attached by a double bond at the first carbon atom of the alkyl side chain that is directly attached to the aromatic ring, as illustrated in FIG. 1 , provide a surprising and unexpected skin whitening effect. The addition of metal ions, such as copper, zinc, selenium, or vanadium and certain antioxidant compositions additionally increases the skin whitening effect.