Description: palmitoyl sh-tripeptide-5 norisoleucyl sh-nonapeptide-1 is the product obtained by the reaction of palmitic acid with a single chain human peptide produced synthetically to be identical to a portion of the protein, melanotropin alpha. palmitoyl sh-tripeptide-5 norisoleucyl sh-nonapeptide-1 contains 13 amino acids consisting of arginine, glutamic acid, glycine, histidine, lysine, norisoleucine, phenylalanine, proline, serine, tryptophan and tyrosine.