What it is: A weekly bond-building treatment that makes hair 8x stronger and more resistant to future damage while adding softness, smoothness and shine.Who it's for: All hair types and levels of damage.What it does: An easy post-shower step in your routine, this leave-in treatment is clinically proven to rebuild the structure of your hair via a patent-pending technology to prevent breakage, reduce visible signs of split ends and offer heat protection up to 450°F/232°C. It builds all three types of bonds in the hair: hydrogen, ionic and covalent. How to use: Start by applying 2 pumps to clean, damp hair. Add more as needed based on hair length, texture and level of damage. Comb through. For best results, wait 10 minutes and blow dry. Use once a week. 1.5 fl. oz. Paraben-free; phthalate-free; sulfate-free Cruelty-free Vegan Made in the USA