Primes hair to absorb nourishment for maximum repair. This professional-inspired treatment delivers the highest dose of patented Olaplex technology available in any take-home product. It rebuilds hair bonds, strengthens, and protects hair integrity while preparing hair for deeper repair. Use as the first step in a two-part system with No.3 Hair Perfector.
Best for
Damaged, chemically treated or colour-treated hair – use before No.3 for maximum repair.
Key benefits
Primes hair for deeper repair and maximum nourishment.
Rebuilds broken hair bonds for stronger, healthier hair.
Delivers the highest concentration of patented Olaplex bond-building technology in a take-home product.
Strengthens and protects overall hair integrity.
Scientifically proven: 68% more repair*, 3x stronger hair*
How to use
The No.0 bottle should last 3–6 applications depending on hair length and density.
When: Use the two-part system with No.3 once a week, or two to three times a week for damaged hair.
Where: Apply to dry hair, fully saturating each section, then follow with No.3 Hair Perfector.
For: All hair types, especially those with visible damage.
*When used as a two-part system with No.3 in just one use.
