定义
sh-Nonapeptide-1 is a single chain human peptide produced synthetically to be identical to a portion of the protein, Melanotropin Alpha, and contains 9 amino acids consisting of arginine, glutamic acid, glycine, histidine, lysine, phenylalanine, proline, tryptophan and valine.
化妆品中的作用
保持肌肤良好状态（CosIng 泛分类）SKIN CONDITIONING