Just For Men Mustache & Beard Brush-In Color Gel instantly eliminates gray hairs for a thicker, fuller look. This ammonia-free formula penetrates coarse facial hair and blends seamlessly with your natural color. Infused with biotin, aloe, and coconut oil, it softens your beard while coloring. Apply in just 5 minutes—the permanent color won't wash out until your gray hair grows back. One box provides multiple touch-ups for cost-effective maintenance. Always perform a 48-hour skin allergy test before use.