Are you tired of razor burns and bumps? Then the magic hair eraser is the answer youre looking for. How to use the crystal hair eraser? Moisten the area where you are going to remove hair move the crystal hair eraser in a circular motion and apply lotion after hair removal. It is advised to not rub it too hard on the skin try on legs and arms before using it on delicate parts of the body other parts of the body may be more delicate and sensitive therefore the crystal hair eraser should be used with caution.