You don't need to spend a fortune or waste time to get salon-quality results at home. Our 500ml bottle of hair color lasts for about 10 applications and the color stays on for up to 3-4 weeks. [Mild nutrition formula]. Our hair dye shampoo for gray hair coverage is made from carefully selected herbal ingredients that are gentle on your hair and scalp. These natural ingredients not only help to color your hair but also nourish and strengthen it. [For all hair types] Whether you have straight, curly or colored hair, our hair dye shampoo for women and men is suitable, it evenly covers every strand of hair and provides a balanced coloring effect, allowing you to show your unique style and personality. 3 IN 1 HAIR DYE SHAMPOO CLEANSE: Apply it as a shampoo. DYE: Just 10-15 minutes, no more visible gray hair. NOURISH: Rich in various plant extracts essence, leave your hair soft and more conditioned. Our Black hair dye shampoo are specially made for gray/white hair coverage, targeting ultra-stubborn grays with 100% gray coverage for rich, radiant color. It only takes 10-15 minutes to dye your hair by yourself at home, but can lasts for 3-4 weeks and bring you salon level dye expereince. Besides, we use powerful ingredients and organic extracts that could take well care of your hair string, which can make your hair more silky and milky.