Just For Men H-25 Light Brown Shampoo-in Hair Color Treatment is designed to easily and effectively restore your natural hair color. This formula works in as little as 5 minutes, blending seamlessly with your original hair color for a natural look. It targets gray hairs and reduces them for a more youthful appearance. The easy-to-use application process means you can refresh your look quickly and without fuss. Simply shampoo it in, wait a few minutes, and rinse out, leaving you with revitalized hair color.