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."