Just For Men Mustache & Beard Hair Color brush-in gel penetrates coarse facial hair. Lasts until the gray grows back. Each shade matches the same Just for Men head hair color. Just For Men replaces gray with subtle tones in 5 minutes. And, it's as easy as shampooing. Just For Men is good to your hair. It has no harsh ammonia. Special conditioners help protect hair while you color. It's a unique complex of Vitamin E, protein, chamomile and aloe for thicker, healthier looking hair that's easier to control.