An aftershave is a lotion, gel, balm, powder, or liquid used mainly by men after they have finished shaving. It may contain an antiseptic agent such as denatured alcohol, stearate citrate or witch hazel to prevent infection of cuts, as well as to act as an astringent to reduce skin irritation.  Menthol is used in some varieties as well to numb damaged skin, and it is an ingredient that shaving cream manufacturers have started including in their formulations, too.