Just For Men Mustache & Beard, Beard Dye for Men with Brush Included for Easy Application, With Keratin Biotin Aloe and Coconut Oil for Healthy Facial Hair - Real Black, M-55 Pack of 1

The good thing about using this is you can put this in your beard and you can also put it in your hair. and the two tubes that you mix together in the supplied mixing tray. and applicator brush make it very easy to use. just a little for a touch up or you can use the right amount for a full beard redo. I put it in my gray hair on the sides of my head because that of course is very hard to color with regular hair color. I even put some in my eyebrows because what's the use of having gray eyebrows but black beard and hair. I recommend this even if it's 12 or $13. it takes 12 or 13 years off of your appearance.

While I don't use this product on my beard or mustache, it works great on my eyebrows. My eyebrows would be completely gray if I didn't have a product like this to use. It can't get much simpler to apply. Mix equal amounts from both tubes and apply with supplied small brush. Once on, just set a stopwatch for 5 minutes and then wash off. I typically put it on before my shower and then wash it off in there. It will last until new hair grows out. For me I use it on average once every 5 days. If you aren't sure of the color/shade you need, buy a lighter shade to start with and try that.