This Thickening Treatment Shampoo for Women by Nanogen is designed specifically for thin hair and works to give your hair a fuller look and feel. Fortified with Hyaluronic acid, which works to thicken hair from the first wash, this shampoo boasts a fresh berry fragrance to ensure your hair smells just as good as it looks and feels. Giving your hair a deep, nourishing cleanse as well as working to thicken, this multi-tasking shampoo will leave your locks super shiny, with a silky texture and a fuller, more voluptuous body. A must have for your haircare regime. K.D. Directions of use: Massage into your wet hair and scalp. Rinse thoroughly after around a minute. Optional: Follow with Thickening Treatment Conditioner. For best results, use every time you wash your hair.