Silk Touch System Serum is a silicone based dual-action heat protector and weightless moisturizer. This serum creates a protective barrier around the hair cuticle and helps to prevent damage caused by sun exposure, chemical treatments, bleaching, blow-drying and other heat sources. Silk Touch Serum works effectively to eliminate flyaway hairs caused by static electricity and weather conditions, without weighing hair down or leaving an oily residue. Conditioning agents, such as hydrolyzed keratin penetrate the hair and bond to broken keratin proteins in order to rebuild, strengthen and return elasticity to the hair while at the same time adding brilliant luster to even the dullest of hair. Safe for use on chemically and color-treated hair.