All items are brand new, unopened, and in their original packaging. Olaplex No. 4 Bond Maintenance Shampoo 250ml 8.5 fl oz #1 Shampoo in Prestige Haircare A highly-nourishing and reparative shampoo. N°4 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 color-safe and proven to reduce breakage and strengthen all types of hair. PH Balance: 6-6.5