abstract |
The present invention relates to N-acyl amino acids, especially N-acyl derivatives, isomers, or salts thereof of phenylalanine or tyrosine; One or more other skin care actives selected from sugar amines, vitamin B 3 , retinoids, peptides, dialkanoyl hydroxyproline, hexamidine, salicylic acid and phytosterols; And dermatologically acceptable carriers for N-acyl amino acids and skin care actives. The invention also relates to methods of regulating the condition of mammalian keratinous tissue, wherein these methods each topically apply a safe and effective amount of the skin care composition of the invention to a mammalian keratinous tissue in need of such treatment. It includes a step.n n n Skin care compositions, N-acyl amino acid compounds, skin care actives, carriers, keratinous tissues, emulsions, cosmetic preparations |