Better grey blending for a more natural-looking color is possible with this shampoo-in hair color. The aloe vera and honey in the hydrating recipe seals in color and leaves hair looking silky and healthy. Natural and Dark 5 Minute Shampoo-In Haircolor offers men natural-looking gray covering in an ammonia-free product that works in 5 minutes and lasts up to 6 weeks. Find the goods that are especially designed for black guys to fit your grooming regimen, from hair color and pomade to hair moisturizer and shaving tools.