3-in-1 Color-Dyeing Shampoo: Hair dye shampoo is suitable for various hair types, delivers even color application and enhancing the appearance of your hair. Achieve rich, dark hair effortlessly with our Hair Dye Shampoo Natural Ingredients: Our upgraded Hair Color Shampoo is formulated with gentle formula that not only nourishes and cleanses the hair, but also covers gray hair and ensures luxuriously shiny and healthy hair Long-Lasting: Color-Dyeing Shampoo provides long-lasting results, and the natural hair color can last up to 3-4 weeks. After multiple washes and treatments, the color is still rich. Enjoy the convenience of longer-lasting color and embrace your new look with confidence Easy to Use: No need to mix in advance, apply color-dyeing shampoo to your hair, massage evenly for 5-10 minutes, leave on for 15 minutes, and rinse off. Save your time and money, no need for multiple salon visits or complex dyeing routines Effortless Dark Hair Transformation: Designed for those who want to say goodbye to grays, restore youthful, vibrant, and shiny hair. Specially formulated shampoo is designed to help you achieve long-lasting, vibrant hair color