Oily skin is identified by an excess of oil (the technical term is sebum) on the face. Some people with oily skin begin to feel greasy only a few hours after washing. A very oily person would feel the need to wash their face between morning and evening, because oil has built up during the day. Oily skin can be an inherited trait, but it can also be caused by puberty, which causes oil glands to go into overdrive. You may also notice more oil on your “T-zone” because of all the oil glands in the forehead, nose, and chin.
People with oily skin generally don’t need a regular moisturizer, but sunscreen is still necessary to reduce exposure to UV rays. Choose an oil-free sunscreen, one that’s specifically formulated for the face and are less likely to create blackheads and clog pores. There are plenty of oil-free sunscreens available, read labels, and try samples of different ones. There’s no excuse not to use sunscreen anymore.