Just For Men Mustache & Beard Color #Jet BlackJust For Men Mustache & Beard hair color brings out the best in your facial hair. It eliminates gray facial hairs for a thicker, fuller look. The fast and easy brush-in gel works in 5 minutes – your gray hair will be gone until it grows back. This ammonia-free formula is made specifically to penetrate and condition coarse facial hair without damaging hair, unlike other hair dye.