3 In 1 Hair Dye: Transform your hair in just 25-40 minutes. Used for hair dye, hair shampoo and hair conditioner, which is economical and affordable! No longer affected by gray hair and rejuvenate! Please Note: Take a skin test 24 hours before use. | Safe & Lasts For 30 Days: The professional and long-lasting formula maintains your beautiful hair color for more than a month after one use. Rich in herbal nutrients, it can nourish and protect your hair, make your hair strong, soft and shiny. Get rid of white hair while promoting healthy hair. | Save Time & Money: Use the Dark Wine Red hair shampoo in your comfortable home, get great color results in just a fraction of the time. 500ML color shampoo is available for around 10-15 applications, save your time and money. | Easy To Use: Require no bowl or brush. Put on gloves, apply the instant hair dye shampoo evenly to your DRY hair. For a more long-lasting coloring effect, it is recommended to use black hair dye for 25 minutes and other colors for 40 minutes. Just minutes, you'll get the hair color you want. Doesn't stain your skin. | How To Choose Color Shampoo Shade: With the color shampoo, one can't go a shade lighter from dark hair as it does not have anybleaching agent in it, and it's a mild color. So,select a color that matches your current hair color for getting the desired result.