I have the odd grey hair in my beard but I use this mainly to cover the ginge tinge i get. It does a good job of darkening it to match my hair colour but it only lasts about a week before the grey/ginger comes through again. Easy, quick to apply, just mix the 2 tubes together and brush on. comes with gloves so you don't stain your fingers but as long as your careful you don't really need themJay