This Living Proof Full Shampoo is the go-to product when you want volume that lasts 5X longer! This product is specifically formulated fir flat, lifeless hair. It uses a new technology invented by scientists to deposit a flexible, micro-patter of thickening points on each specific strand of hair to instantly make it look fuller. These thickening points will add the perfect amount of natural texture to each tress of hair to make it look full, sexy and beautiful. This product is sulfate free, silicone free, and oil free so it will leave your hair healthier than ever.