💥 Go Big or Go Home: Elevate Your Hair Game! Transform fine hair into a voluminous masterpiece! Keep your color vibrant while boosting body. Deep clean without the weight—feel the difference! For best results, pair with our full collection! Biotin and Collagen for hair that shines with health. Biotin Boost Sulfate-Free Extra Strength OGX Thick & Full + Biotin Collagen Extra Strength Volumizing Shampoo is a sulfate-free shampoo designed to enhance volume and thickness for fine hair. Infused with biotin, collagen, and hydrolyzed wheat protein, this lightweight formula cleanses while nourishing, leaving hair looking fuller and healthier. Ideal for those seeking a vibrant, voluminous look.