A highly moisturizing, reparative shampoo that leaves hair easy to manage, shiny and healthier with each use. N°4 is color-safe, sulfate-free, and proven to reduce breakage and strengthen all types of hair.
- Apply and massage product throughout hair. Start with a nickel-sized amount and adjust as needed.
- Rinse product from hair.
- Follow with Olaplex N°5 Bond Maintenance Conditioner (sold separately)
Use every time you shampoo. Follow with No.5 Bond Maintenance Conditioner for best results.