Infused with collagen, a building block for healthy hair and biotin to help strength and maintain growth. Thickening shampoo also contains a nutrient-rich blend of vitamin B7 and hydrolyzed wheat protein. Thickens and volumizes while giving hair a beautiful boost with fuller and more abundant looking locks. Pleasant bergamot, jasmine and vanilla scent leaves tresses smelling irresistibly good. The sulfate-free surfactant haircare system is paraben-free, gentle and leaves hair feeling nourished. Ideal for flat to medium volume hair, the shampoo leaves hair looking and feeling fuller and healthier. Plump up the volume in your hair with OGX Thick & Full + Biotin & Collagen Hair Volumizing Shampoo. For a routine that pumps up the volume, use the entire Biotin & Collagen hair care collection. P