A powerful, clinically proven pre-shampoo treatment that makes hair 3x stronger in just one use.* N°.3 is a complete treatment to repair and strengthen all 3 hair bonds. Formulated for all hair types and levels of hair health, this weekly treatment is the key to healthy-looking hair.
- Before shampooing, apply N°.3 in the shower from roots to ends until absorbed.
- Leave on for 3-10 minutes, then rinse thoroughly.