Our OGX Thick and Full Biotin Collagen shampoo with hydrolyzed wheat protein and Vitamin B7 is sulfate-free and gives your strands amazing volume. Formulated with Biotin also known as Vit B7 essential in maintaining the health of hair SKIN CARE and nails combined with the goodness Collagen which is rich in amino acid helps strengthen nourish and thicken your hair. Our color-safe plumping shampoo is designed to nourish and moisturize hair making them healthy voluminous and beautiful.