Natural Safety:Our hair darkening shampoo bar safer compare to any traditional shampoo while bringing you a shiny & vivid hair look. Maintenance and Repair:Hair darkening shampoo bar provides an all-around hair care as black soap for gray hair keeps the scalp healthy and hair’s natural moist and shine. Easy to Use:Darkening shampoo bar is suitable for all hair types. black soap perfect for both men and women is very easy to use just gently. Daily Hair Care:Use natural darkening soap as a daily hair shampoo every day.Enhances hair color and maintains its brightness.insisting on long-term use of our black soap can reduce the growth of gray hair. Specifications Department Unisex What's In The Box New Hair Darkening Shampoo Bar, (1PC-Black)