Listing includes OLAPLEX Nº 0, Nº 3, Nº 7, and Nº 9. OLAPLEX Bond Building Technology™ is proven to relink broken disulfide bonds damaged by chemical services, heat, and styling. All bottles are new and unopened Guaranteed authentic Nº.0 (5.2 oz) Intensive Bond Building Hair Treatment- Primes, repairs, strengthens and protects all hair types. Nº.3 (3.3 oz) Hair Perfector- A pre-shampoo hair treatment that reduces breakage and split ends for visibly healthier hair. Nº. 7 (1 fl oz) Bonding Oil- Boosts shine, strengthens and repairs all hair types. Reinforces hair's moisture barrier. Deeply nourishes hair. Protects against humidity and color fading Nº.9 (3 oz) Bond Protector- Nourishing, hair serum, protects, softens, and improves manageability of all hair types