Patent ID: 7019029
Filing Date: 2006-03-28
Classification: A61K,A61P,A61Q

Abstract:
1. A method for whitening skin comprising topically administering to the skin an effective amount of a composition containing from about 0.5% to about 25% by weight of a hydroxytetronic acid derivative active ingredient having the formula where R 1 has the formula —(CH 2 ) n -φ, where φ is a substituted or unsubstituted phenyl group and n=0 to 6 and R 2 is hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group or has the formula —(CH 2 ) n -φ, where φ is a substituted or unsubstituted phenyl group and n=0 to 6 to reduce melanin in the skin.