Directions for use:
1. Apply to dry hair, comb through to ensure saturation. Leave on for 10 minutes. Do not rinse.
2. Layer No.3 directly on top of No. 0. Comb through. Leave on 10 minutes or longer.
3. Shampoo with Olaplex No. 4 Shampoo, followed by No. 5 Conditioner.
4. Rinse and towel dry. Apply No. 6 or No.7 as a leave-in treatment.
Use the two-part system once a week or 2-3 times a week for damaged hair.
No.0 bottle should last 3-6 applications, based on hair length and density.