A shampoo infused with Keratin and Provitamin B5, that nourishes, moisturizes and adds shine to the hair. The unique Quat Complex strengthens strands and protects them against breakage.Frizz. Fluff. Flyaways. Like it says on the bottle, Keratin Smooth Shampoo cleanses and smoothes, for clean, frizz-free hair. And, like its name says, Keratin Smooth Shampoo is infused with keratin, a fibrous protein found in your hair and a key building block. This means this shampoo especially good if your hair is dry or damaged. Our Quat Complex strengthens strands and helps prevent breakage.Squeeze and massage a small amount into wet hair. Rinse and follow up with conditioner.