Olaplex NO 0

INTENSIVE BOND BUILDING HAIR TREATMENT
Our professional-inspired treatment primes your hair for deeper repair, rebuilds hair bonds, strengthens, and protects hair integrity. Use as the first step in a two-part at-home system with No.3 Hair Perfector (sold separately) to strengthen and repair all types of damaged hair.
How to Use:
1. Apply No.0 to dry hair, fully saturating each section. 
2. Process for 10 minutes. DO NOT RINSE. 
3. Apply No.3 Hair Perfector over hair combing through as needed.
4. Process for another minimum of 10 minutes. 
5. Rinse, shampoo & condition. 

For best results, use No4 Shampoo & No5 Conditioner.

Who to Use:
All hair types, especially for those with visible damage
 
When to Use:
Use the two-part system once a week or two to three times a week for damaged hair.