Olaplex No.5 Bond Maintenance Conditioner 8.5 oz The No. 5 Bond Maintenance Conditioner is a highly-moisturizing, reparative conditioner that protects and repairs damaged hair, split ends, and frizz by re-linking broken bonds. It is for all hair types and leaves hair easy to manage, shiny, and healthier with each use. It is color-safe, leaves hair stronger than ever, and benefits all hair types and textures. Olaplex No.4 Bond Maintenance Shampoo 8.5 oz This shampoo repairs and protects hair from everyday stresses - including damaged hair, split ends, and frizz - by re-linking broken bonds. No 4 is color-safe and proven to reduce breakage and strengthen all types of hair.