Suave Professionals Keratin Infusion Color Care Conditioner conditions and uses Keratin oil for hair to seal your hairs cuticle to keep color vibrant. When you choose a color conditioner or deep conditioner for color treated hair, it's important to find one that will be gentle on the color you have, but will still make your hair feel fresh and clean. This Keratin conditioner formula is infused with Keratin complex and has lower Sulfates vs. current Suave Professionals formulas. When used together, Keratin Infusion Color Care Shampoo and Hair Conditioner are salon proven to prevent frizz as well as Krastase Discipline Fondant Fluidealiste *Registered trademark L'Oreal SA. For best results, follow this Color Care shampoo and conditioner system with Keratin Infusion Leave-In Conditioner for enhanced smoothness.