100% GRAY HAIR COVERAGE: Can effectively cover gray hair, so that you are no longer affected by gray hair and rejuvenate. Obtain back the fresh-looking hair of your younger days. Dark Brown hair can last 3-4 weeks. The hair color shampoo only hang on to the exterior of the hair shell, It's safer for your hair as well as your skin. (Warm Note): Take a skin test before first using. | DARK BROWN HAIR DYE SHAMPOO 3 IN 1 : Our Hair Dye is different from traditional hair dye, No parabens & no harsh chemicals. Dark Brown/Black hair dye, can be used not only as a color hair dye but also as a hair shampoo and hair conditioner. Very convenient to make hair dye dark brown at home. | MILD HERBAL FORMULA INGREDIENT: Natural plant formula, strengthen the hair roots, make the hair strong and soft. Ginseng extract nourish the hair silk, make the hair dark and shiny. Natural dark brown hair lasts for more than 3 weeks. Doesn't damage hair | EASY TO USE: Requiring no bowl or brush, just need to put on gloves, and use it the same as normal shampoo, wait for only 15 - 20 minutes(For full coverage of grey hair stay time 20 minutes), Our hair dye shampoo for women and men will cover all your grays! Doesn't stain your skin. | SAVE TIME & MONEY: Stop spending a lot of time and money going to the salon. Now you can use our color shampoo from the comfort of your home and get great color results in just a fraction of the time. Save a lot of time and money. It is very suitable to give parents and elders as a gift