OGX Thick & Full + Biotin & Collagen Shampoo is volume-creating with an extra helping of vitamins & 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 & hair health. Paired with collagen, this blend helps nourish hair for a full, healthy look. Be ready for a night out with extra strength conditioning designed to fill your strands with life and body. OGX Extra Strength volumizing shampoo & conditioner for fine hair helps provide more volume than regular strength volumizing & hydrating shampoo, so show off those full strands! This blend infused with bamboo fiber extract & hydrolyzed wheat protein creates a color-safe plumping shampoo designed to nourish hair with everything it needs to look healthy. For best results, use this shampoo & conditioner with the entire OGX Biotin & Collagen hair care collection.