OGX's Biotin & Collagen Extra Volume Extra Strength 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. 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. This conditioner helps provide more volume than regular strength conditioner, so show off those full strands. 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.