Image Pro Skin Analysis Software takes a picture of your skin in normal "day light" and then under UV (ultra violet) light. UV light shows the damage that is under the skin that is yet to come to the surface to be seeing. The Image Pro analyzes 6 categories: surface sun damage, enlarged pores, fine lines and wrinkles, skin roughness, acne (bacteria) and sun damage that you can't see with the naked eye yet! With this information the software is able to get an accurate skin age. What is your skin age? You birth age may be 35 years old but if you have poor home care and have abused your skin, your skin age may be showing that you look 45 years old.