Plump up the volume in thin hair with the OGX Thick & Full + Biotin & Collagen Hair Volumizing Shampoo and Conditioner. Ideal for flat to medium volume hair, leaving hair feeling fuller and helping to create more abundant-looking locks. The nutrient-rich, plump-it-up formula, is infused with vitamin B7 biotin, collagen, and wheat protein, and helps maintain growth for hair that's healthy-looking and feels thicker. Plus, the bergamot, jasmine and vanilla scent makes lathering up an all-around sensory experience that leaves locks with an irresistibly good smell. Paraben-free with sulfate-free surfactants, the hydrating shampoo and hair conditioner are gentle on the scalp and help turn up the volume on your tresses. For best results, use this shampoo and conditioner with the entire OGX Biotin & Collagen hair care collection and hair hydration treatment products to help moisturize and infuse nutrients into every strand.