AGE: 28-ish Change #1: Your acne. It’s still here (sorry), but it’s different than it was in your teens and even your early-to-mid 20s. “The late 20s is when women start to see hormonal acne—deep, cystic bumps in the chin and jawline area,” says Lauren Ploch, MD, an Augusta, Georgia-based board-certified dermatologist and Fellow of the American Academy of Dermatology. The drying products you used to smother your whiteheads won’t work as well on these hormonal breakouts, says Ploch. What to do about it: Topical exfoliators, such as retinoids, can help, but…

There’s one acne fix that doesn’t require a trip to the dermatologist. Earlier this year, researchers recruited people ages 18 to 35 with no acne or moderate-to-severe acne (which, if you’re interested, they defined as roughly 15 active pimples at any given time) and told them to either follow their normal diet or one with a low glycemic index for two weeks. (The research was presented at the Food and Nutrition Conference Expo 2016.) Here’s what you need to know about the glycemic index (GI): Every food has a number, and…