Prime your hair for your deepest at-home repair with this salon-inspired pre-treatment to boost the effects of N°.3 Hair Perfector™. The highly concentrated formula rebuilds disulfide bonds to repair more severe damage and immediately strengthens hair when N°.0 is used with N°.3.

Patented OLAPLEX Bond Building Technology™

Strengthens hair and repairs damage on a molecular level by rebuilding the disulfide bonds that give hair its structure.

Water/Aqua/Eau, Bis-Aminopropyl Diglycol Dimaleate, Sodium Benzoate, Phenoxyethanol

1. On dry hair, apply and distribute evenly from root to tip.
2. Leave on for 10 minutes. Do not rinse.
3. Apply N°3 Hair Perfector™ and comb through.
4.  Leave on for 10 minutes. Rinse well.
5. Shampoo and condition with N°4 and N°5.

Use as a two-part system with N°3 once a week or 2-3x per week for very damaged hair.