OGX Thick & Full+ Biotin & Collagen Shampoo is an exclusive blend of Vitamin B7 biotin, collagen and hydrolyzed wheat protein that helps thicken and texturize any hair type with just one use. A powerful sulfate-free formula, OGX Thick & Full+ Biotin & Collagen Shampoo helps volumize even the skinniest strands to create an appearance of thicker, fuller and healthier looking hair. OGX beauty pure and simple!