A weekly leave-in treatment and hair mask that makes hair 8x stronger* + more resistant to future damage while adding softness, smoothness + shine. Scientifically proven to make hair 8 times stronger. Stylists prefer Triple Bond Complex over the leading bond builder. Builds all three types of bonds in the hair: hydrogen, ionic, and covalent. Reduces visible signs of split ends while preventing breakage + future damage. Heat protection up to 450°F/232°C. 1.5 OZ New - Unopened Welcome to offers