Patent ID: 7176172

Claim:
A method for treating signs of aging in human skin, the method comprising applying to the face and body surfaces a personal care composition comprising: (i) from about 0.1 to about 30% by weight of a quaternary ammonium compound selected from the group consisting of: (a) salts of hydroxypropyltri(C 1 –C 3 alkyl)ammonium mono-substituted polyols, the salts having a cation of an average molecular weight no higher than about 450 and the salts having a T g no higher than about 10° C.; (b) dihydroxypropyltri(C 1 –C 3 alkyl)ammonium salts; (c) chlorohydroxypropyltri(C 1 –C 3 alkyl)ammonium salts; and (d) mixtures thereof; (ii) from about 1 to about 99.9% by weight of a cosmetically acceptable carrier.