A treatment product that prepares hair for more beneficial repair thanks to patented OLAPLEX technology.

Rebuilds hair bonds, strengthens and protects hair health.

Use as the first step in a two-step system with No. 3 Hair Perfector.

Scientifically proven:

68% more repair and 3 times stronger hair*

*When used as a two-step treatment in just one application.

Tip for use: Bottle N° .0 should last 3 to 6 applications, depending on hair length and thickness.

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How to use:

Apply No. 0 (zero) to dry hair, distribute it completely over the entire hair, and leave it for 10 minutes - do not rinse it.

Apply No. 3 Hair Perfector (sold separately) to hair with the number 0 (zero) on it, and comb through as needed. Leave on for at least 10 minutes, then rinse and shampoo and condition.

Brush or detangle hair before applying No. 0 so it can be easily absorbed. For thick, coarse, or long hair, work in small sections to ensure each area is fully saturated.