Self- tanning composition containing an ester of an N-acyl amino acid

摘要

The use of an N-acyl ester of an amino acid in a bronzing or tanning composition to improve coloration and stability of the bronzing agent. <??>The N-acyl ester is of formula R'1(CO)N(R'2)CH(R'3)(CH2)n(CO)OR'4; <??>R'1 = 5-21C alkyl or alkenyl; <??>R'2 = H, 1-3C alkyl; <??>R'3 = H, methyl, ethyl, 3-4C alkyl; <??>R4 = 1-10C alkyl, 2-10C alkenyl, sterol residue; <??>n = 0, 1, 2 <??>An Independent claim is included for cosmetic compositions comprising an autotanning agent and the N-acyl ester of an amino acid.