Promois WK is a hydrolyzed keratin of low molecular weight. Keratin is one of the structural proteins composing the stratum corneum, hair, and nails. It comprises 80% of human hair. In terms of its amino acid composition, it has cystine, which is rarely seen in any other kinds of protein. In association with disulfide bond, it has a very unique molecular structure, so the peptide is well cross-linked. Because of this structure, many functional end groups such as amino groups and carboxyl groups exist within a single molecule. Consequently, high adsorption can be achieved with keratin. Promois series is peptide, obtained through the hydrolysis of natural proteins, and their derivatives.
Promois WK是一种低分子量的水解角蛋白。角蛋白是组成角质层，头发和指甲的结构蛋白之一。它包含80％的人发。就其氨基酸组成而言，它具有胱氨酸，这在任何其他种类的蛋白质中都很少见到。与二硫键相结合，它具有非常独特的分子结构，因此该肽具有良好的交联性。由于这种结构，在单个分子内存在许多官能端基，例如氨基和羧基。因此，角蛋白可以实现高吸附。 Promois系列是通过天然蛋白质水解获得的肽及其衍生物。