Primes hair for maximum repair.

Our professional-inspired treatment primes your hair for deeper repair, rebuilds hair bonds, strengthens, and protects hair integrity. Redesigned for a quick and targeted stream application, the Nº.0 features an easy to use nozzle that 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 (sold separately) to strengthen and repair all types of damaged hair.

Scientifically Proven: 68% more repair & 3x stronger hair* *When used as a two-part system in just one use.

APPLICATION TIP: N°.0 bottle should last 3-6 applications, based on hair length and density."

Hair Type: Straight, Wavy, Curly, and Coily

Hair Texture: Fine, Medium, and Thick

Suggested Usage:
-Apply slowly to dry hair, distributing evenly from root to tip.
-Work No. 0 into small sections by squeezing the liquid into the hair to be fully absorbed as you go.
-Lightly saturate from root to tip. Hair should be damp, not drenched.
-Let process for 10 minutes.
-Do not rinse.
-For the complete treatment, apply No.3 Hair Perfector (sold separately) over hair with No.0 applied to it, combing through as needed.
-Let process for a minimum of 10 minutes.
-Rinse, shampoo, and condition.
-For best results, use No.4 Shampoo and No.5 Conditioner (each sold separately).