N°4 Shampoo repairs and protects hair from everyday stresses — including damaged hair, split ends, and frizz — by re-linking broken bonds.Olaplex No. 4 Bond Maintenance ShampooSKU: 896364002756$46.00PriceSize*SelectQuantity*Add to CartBenefitsRepairs and protects hair from everyday stresses Suggested UseFormulated for daily or every wash use.