A highly moisturizing, reparative shampoo that leaves hair easy to manage, shiny and healthier with each use. N°4 is color-safe, sulfate-free, and proven to reduce breakage and strengthen all types of hair. PH Balance: 6-6.5. A highly-moisturizing, reparative conditioner for all hair types that leaves hair easy to manage, shiny and healthier with each use. N°5 Repairs hair and maintains bonds within the hair, Adds shine, Strengthens.PH Balance: 4.0-5.0