I do not know why but hair colouring descriptions are always wrong, dark brown it is black. It does what it says. I only have a small moustache and the instructions say mix the two ingredients together by pouring the tube of cream into the bottles of liquid and shake for two minutes, what I did was poor a third of the liquid into a plastic dish added the same amount of cream and mixed with a cotton bud for two minutes and applied to the bristles of my moustache using the cotton bud and rubbing well in. I do not know how long the unused ingredients last but I am sure I will find out. The thing that was off putting is that they supply a pair of plastic gloves, if it burns your hands you would not put it on your face. I now have a black moustache without any grey and without any allergic reaction to the ingredients.This works well and I didn't get any skin irritation.Seems to be lasting.Definitely worth trying.Not as described on the add, this product is for colouring your hair not moustache colour cream.I wouldn't recommend, wastage of money!This product worked like water would on my grey hairs, the greys are still grey. Waste of my money.This product caused reaction.i won’t purchase it again.it isn’t as cla8med.