Mokeru Argan oil Black Hair Shampoo, part of our brand's line of hair care products, is designed specifically for women and formulated with natural argan oil to achieve a black hair color in just 5-25 minutes. Along with its hair dyeing properties, it nourishes, protects and repairs the scalp. This shampoo is a cost-effective and convenient alternative to traditional hair dyes, saving both time and money. Additionally, it is a natural and gentle option, ensuring no harm to the hair or scalp during the dyeing process. To use, simply rub into hair like normal shampoo for a few minutes, then rinse. Please note that a skin test should be done prior to use and for optimal results, hair should be dry before application, without adding water. Depending on desired color, leave shampoo on for 5-10 minutes for black and 30-40 minutes for brown before rinsing. Remember to massage gently during application.