OGX Thick & Full + Biotin & Collagen Shampoo, with vitamin B7 biotin, collagen, and hydrolyzed wheat protein, helps to infuse nutrients into every strand and create the appearance of thicker, fuller, healthier looking hair. Discover thicker, fuller and more abundant looking strands with this formula, which helps to thicken and texturize any hair type. Immerse your skinny strands in this super volumizing blend to help create fuller looking, shiny hair.