A highly-nourishing and reparative shampoo that leaves hair easier to manage, shinier and healthier with each use. It repairs and protects hair from everyday stresses — including damaged hair, split ends, and frizz — by re-linking broken bonds. N°4 is color-safe and proven to reduce breakage and strengthen all types of hair. PH Balance: 6-6.5

How to use :

1. Apply and massage product throughout hair.

2. Rinse product from hair.

3. Follow with Olaplex N°5 Bond Maintenance Conditioner (sold separately).

Benefits:

 --DEA Free

-- Aldehydes Free

-- Formaldehyde Free