OLAPLEX No.0 Intensive Bond Building Hair Treatment (155ml) is a powerful, professional-grade treatment that primes hair for deeper repair. Infused with OLAPLEX's Bond Building technology, it targets and strengthens damaged bonds, improving hair's strength, elasticity, and overall health. Perfect as the first step in a two-part system when followed by No.3 Hair Perfector.

How to Use: Apply to dry hair, saturating from roots to ends. Leave on for 10 minutes, then follow with No.3 Hair Perfector. Rinse, shampoo, and condition as usual. For best results, use weekly.