If you've noticed your skin has a little extra shine, then it's likely that you have what's classified as oily skin. While it's true that everybody has oil in their skin (after all, it's what helps keep it hydrated!), too much oil can cause breakouts and too much shine. If this sounds like you, then you'll be happy to know that there are some dermatologist-approved tips for how you can help your oily skin, especially during the warmer weather of summer.