Our Sulfate Free Keratin Shampoo is crafted without sulfates to gently cleanse the hair. It maintains the natural oils on the scalp leaving your hair with more moisture. It also improves hair health by feeding every strand with the nutrients they need. Biotin, Argan Oil & Macadamia Oil helps in increasing the hair elasticity as well as strengthens the hair to grow thicker & healthier. New & Improved Formula with Biotin.