The Keune CARE Keratin Smooth Mask is an enriching mask formulated with keratin, provitamin B5, and shea butter. It deeply hydrates to easily detangle hair and add a healthy, shiny finish. The Keune CARE Keratin Smooth Mask is infused with Keune's Quat Complex that strengthens strands and protects them against breakage. This mask is perfect for those with damaged hair or normal to dry hair. The Keune CARE Keratin Smooth Mask is infused with keratin, which is a fibrous protein found in your hair and a key building block. This makes this mask perfect for dry or damaged hair. Lastly, this mask uses peptides to dive deep beneath the surface of each strand to restore damage, while keravis strengthens and helps prevent breakage.