[Say Goodbye to Gray Hair]: Simply massage the Black/Brown hair dye shampoo into your hair and wait 10-20 minutes to quickly color your hair Black/Brown.(Warm tip: do a skin test before using for the first time) [Easy to Use]: No special skills or tools are required, and it can be used like a normal shampoo. No need to mix multiple products or worry about making a mess. (Recommended when hair is dry) [Save money and time]: Our color shampoo is an affordable and convenient alternative to expensive salon treatments. You can achieve salon-quality results at home without spending a fortune or wasting time. [Herbal ingredients]: Our hair color shampoo 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.