You can use a disposable paper face mask or a reusable cloth face mask to cover your face while tanning. Make sure whatever you’re using is clean and free of any makeup or oils, as these can create a barrier between your skin and the UV rays. You should also apply sunscreen to any exposed areas of skin, including your face, to protect it from the UV rays. Be aware, however, that if you do this then you won’t tan. You should therefore only do this with areas you don’t want to get any more tanned.