Our Disulfide Bond Reductive Hair Mask contains Glycerin, Hydrolyzed Keratin, Simmondsia Chinensis(Jojoba) Seed Oil. It can repair damaged hair, reshape hair structure, and make your hair look healthier. Its use method is very simple: wet the hair, wipe until half dry, take an appropriate amount of hair mask to avoid the scalp, evenly apply on the hair, and then tie up the hair or cover with a shower cap, wait for 5-30 minutes, and finally rinse thoroughly with a lot of water. It can nourish and protect hair, repair damaged hair, and make hair more supple and shiny.