"Covatently" bonds protein, permanently rebuilds hair from the inside out. Tiger will help grow your hair longer and stronger faster, it is recommended that you dry it into your hair with heat, so you can blow dry and use hot irons, hot rollers etc. and actually rebuild your hair while styling. Leaves the hair soft, strong shiny and full of body. It's a spray, and a little goes a long way, use sparingly on a weekly basis.