Nayvi Serum Be careful when shaving so that you don't damage your skin. Use some sort of barrier, be it lotion or gel, for lubrication, and change your razor blade frequently. To keep damage down, shave with hair growth. If you don't follow this advice when shaving, you can diminish natural oils, dry skin out and damage it.Nayvi Serum Caring for your feet should be part of your skin care regimen. Having healthy feet is a part of having healthy skin. To prevent blisters, use a lotion that has silicone in it.