Olaplex No. 4 Bond Maintenance Shampoo repairs and protects hair from everyday stresses — including damaged hair, split ends, and frizz — by re-linking broken bonds. Leaves hair easier to manage, shinier and healthier with each use. N°4 is colour-safe and proven to reduce breakage and strengthen all types of hair. PH Balance: 6-6.5

How to Use: Apply and massage product throughout hair. Thoroughly rinse product from hair. Follow with conditioner. 

Size: 250ML, 1000ML