Cover Gray Hair Dye Paste Treatment - Dark GrayUsage tips: It may take multiple applications to get desired hair color. Best applied to dry hair after shampooing. 240g Made in Japan This is a color treatment for concealing gray hair that can be used as a treatment while dyeing your hair. It will dye your hair beautifully in about 3 weeks, and gray hair will become less noticeable. Each time you use it, it will gradually cover gray hair and give it a natural color. It also helps to gradually