Our protein straightening cream contains elastin and collagen. It can repair damaged hair, improve hair environment and quality, soften hair, protect hair cuticles, and make hair soft and shiny. Its use method is very simple: first wash the hair with shampoo, wipe until semi-dry and then use, then evenly apply the product on the hair, calculate the straightening time according to different hair types, healthy hair 20-30 minutes, damaged hair 10-20 minutes, wait until the time is up, rinse with water. After use, it helps to repair damaged hair, make hair natural smooth, enhance hair luster, and form black and beautiful hair.