A professional-inspired treatment that primes your hair for absorbing nourishment, rebuilds hair bonds, strengthens and protects hair integrity. This intensive, bond-building treatment is best used as a two-part system with No.3 Hair Perfector to further enhance, strengthen and repair all types of damaged hair. It multiplies and reconnects broken bonds creating velcro-like receptors to receive the additional benefits of No. 3. Free from Parabens, Sulfates, Phthalates. Cruelty free and Vegan!