There are a number of factors that can contribute to early aging, so spotting the signs early on can help you take the proper precautions to help you preserve your skin and keep it as youthful looking as possible.

“The number one factor responsible for premature aging is sun exposure,” says dermatologist Dr. Arielle Kauvar over email. “Approximately 90 percent of the signs of aging (wrinkles, sagging, brown spots and botches, redness and visible capillaries, dry, dull skin) are due to lifelong sun exposure. Other factors include smoking, alcohol use, nutrition, exposure to extreme climates, poor health, and stress.”

The earlier you start protecting your skin, the better it will age over time, and sometimes, seeing an expert is the best way to help you stop premature aging in its tracks. Here are nine signs your skin is aging prematurely and you should go see a dermatologist.