This luxurious treatment enriches the hair with Keratin and Keravis, greatly improving its strength and adding beautiful shine.Keratin Smooth Mask is a rich moisturizing treatment that smoothes frizz, fluff and flyaways. Like its name says, it’s infused with keratin, a fibrous protein found in your hair and a key building block. This means this mask is perfect for dry or damaged hair. Peptides dive deep beneath the surface of each strand to restore damage, while keravis strengthens and helps prevent breakageWork a small amount through freshly cleansed, towel-dried hair. Indulge for a few minutes, then rinse. For extra TLC: wrap a warm towel around your head while the product sinks in.