Progaine Volumizing Shampoo gently cleanses your fine or thin hair, giving it the feel of weightless body. This unique formula penetrates each hair as it strengthens from the inside out, providing each strand more volume. Volumize with every shampoo!Progaine hair care is brought to you by the scientists at Rogaine. Through years of research and focus, they have become experts in fine and thin hair. Progaine products are designed to cleanse, condition and style; they do not contain the regrowth ingredient in Rogaine.