Dark Brown – The New Power of Hair Colour. This permanent hair color comes with gloves, coloring brush, and developer. It provides optimum grey coverage, natural looking, shinier, and healthier hair. 1 order comes with 6 boxes. Wear gloves and part your hair to apply color mixture from the roots to the end of your hair until the head is covered. Sponge away any excess colorant to avoid the skin from staining. Leave for 30 – 40 minutes then rinse out.