Just For Men Shampoo-In Hair Color in Medium Brown (H-35) is a fast and easy hair coloring solution specifically formulated for men. This product restores natural color while strengthening hair with its nourishing formula containing keratin, olive oil, and vitamin E. The product includes a color base of 27.5mL and color developer of 38.5mL net. As this is a personal care product, please carefully read all instructions and perform a patch test before use.