Applied after the color / chemical service to stabilize the bonds, deeply nourish, seal the cuticle and protect the color. It is not a conditioner. Can also be used outside of chemical services as a strengthening treatment Builds and enforces strong structural bonds, reduces breakage by 98%. Does not interfere with the chemical service, compatible with all brands Does not require alterations to developer strength or timing Must be used in conjunction with ALL hair defender PLEX Bond Maker #1 Free of Sulfates, Parabens, DEA, MI. Never tested on animals. 8oz bottle with pump All hd PLEX Bond Reinforcer #2 is applied after the chemical process. It contains high performing actives and was developed in a creamy texture for easier application. Bond Reinforcer #2 stablizes the bonds, deeply nourishes, seals the cuticle and protects the color (for long lasting color). It is not a conditioner and must be used with All hd PLEX Bond Maker #1.