This treatment primes your hair for deeper repair, rebuilds hair bonds, strengthens, and protects hair integrity. Featuring an easy-to-use nozzle, it delivers the highest concentration of the patented bond building technology of any Olaplex at home product. Use as the first step in a two-part at-home system with No.3 Hair Perfector.

OLAPLEX is one of the largest independent hair care brands in the world with over 100 worldwide patents. Through a grassroots approach, the brand quickly became a global sensation, paving the way for a completely new category of haircare called “bond-building."

Apply to dry hair, fully saturating each section. Bottle should last 3 to 6 applications, based on hair length and density.

Water (Aqua/Eau), Bis-Aminopropyl Diglycol Dimaleate, Phenoxyethanol, Sodium Benzoate