Prime your hair to absorb nourishment for maximum, deeper repair with the patented Olaplex No.0 Bond Builder.
A professional-inspired treatment that primes hair for deeper repair with the highest dose of patented OLAPLEX technology in any take-home product. It rebuilds hair bonds, strengthens and protects hair integrity. Use the two-part system with N°3 Hair Perfector Oil once a week or two to three times a week for damaged hair.
Scientifically Proven: 68% more repair & 3x stronger hair*