When we style our hair with heat or treat it with chemicals, such as straighteners or perms, we also damage the very structure of the hair. Chi Silk Infusion uses varying weights of proteins to help repair the damaged areas of the hair. THis is vital to keeping hair healthy! We love Chi Silk Infusion! Hair is made up of proteins and any damage to this protein structure results in moisture loss and in turn damage to the hair such as drying, frizzy, out of control and much more such as loss of shine.