Simply Smooth Xtend Color Lock Keratin Replenishing Shampoo is a botanically blended gentle keratin infused cleanser. This sodium chloride free shampoo is formulated to benefit all hair types especially hair that has completed a colour service or a Simply Smooth colour lock keratin treatment. Xtend Color Lock Keratin Replenishing Shampoo will help to maintain the keratin levels within the Simply Smooth treatments and hair color service. Features: Suitable for all hair types. Adds shine and body Hydrates all hair types Anti-color fade, anti-aging formula Sodium chloride free. Maintains a Color Lock treatment & full keratin treatment Seals hair fibers and locks in hair color services. Replenishes grade A keratin into hair fibers High levels of antioxidants promotes strength & colour stability.