If you have grey hair, you can use the machine below. It is safe to use on both your face and body. Please be mindful that like my description of white hair below, in order to get any hair removal results for grey hair, your grey hair should have some slight color pigment to it in order for the machine below to work. The greater the color pigment of the hair, the better the results.
If you have white hair, as of 2017, there is no laser or IPL hair removal machine that will work to successfully remove body or facial hair permanently. You can try the machine below, but the success rate is relatively low. This is because white hair, unfortunately, has absolutely no color pigment to it. This basically means that the laser or ipl light cannot focus on any pigment in the hair in order to damage the hair follicle. I have had a few people with white hair try the machine below. They have seen a small difference in hair growth, but there is no guarantee it will remove hair permanently.
Tanda Me Elos & Iluminage Machines