Primes hair to absorb nourishment for maximum repair.

Features:
- Rebuilds hair bonds, strengthens and protects hair integrity
- Suitable for all hair types, especially for those with visible damage
- PH Balanced
- Vegan
- Cruely, gluten, nut, parben, phosphate and sulfate free

How to Use:
- Apply the No.0 to dry hair
- Comb the product through to ensure saturation from root to tip
- Wait 10 minutes, then apply OLAPLEX No.3 Hair Perfector directly on top of No.0
- Comb again then let the treatment sit for another 10 minutes for more significant results.