Gx Collagen Shampoo for Hair Biotin & Collagen shampoo contains a formula that provides volume with the innovative B7 vitamin, biotin, precious collagen, and natural wheat protein. It instantly makes thin hair appear more dense, thicker, and noticeably healthier. It also nourishes the hair from roots to ends and makes it shine again. Size Package size 385 ml. Benefits and Features Helps strengthen growth. Sulfate and paraben free. Nourishes hair from roots to ends. How to use Apply generously to wet hair, massage the foam to the ends, then rinse the hair well. Product barcode 022796976703