Immerse your skinny strands in this super volumizing blend to help create fuller looking, shiny hair after just one use. OGX Thick andamp; Full + Biotin andamp; Collagen Shampoo is an exclusive blend with vitamin B7 biotin, collagen and hydrolyzed wheat protein. This formula helps to infuse nutrients into every strand and creates the appearance of thicker, fuller, healthier-looking hair.