OGX XS Biotin & Collagen Conditioner is a volume-creating powerhouse with an extra helping of vitamins and proteins to pump up flat strands. Extra body doesn’t mean extra weight with a thickening, sulfate-free surfactant blend of nourishing ingredients for full, voluminous hair. Biotin, or vitamin B7, is crucial for skin, nail, and hair health. This premium ingredient blend infused with bamboo fiber extract and hydrolyzed wheat protein creates a color-safe plumping conditioner designed to nourish hair with everything it needs to look healthy and beautiful.