“Most sun damage occurs before the age of 18”
MYTH: MOST OF THE SUN DAMAGE YOU INCUR HAPPENS BEFORE AGE 18.
The reality: “Recent studies have shown that by age 18, you’ve only accumulated 18 to 23 percent of the sun damage you’ll incur over a lifetime,” says Dr. Katie Rodan. That means that there’s still time to protect your skin from the sun and put off sun-induced aging. Do this by using sunscreen and products with sun-damage reversing ingredients such as vitamin C and retinol.
From skincancer.org: Actually, only about 23 percent of lifetime exposure occurs by age 18. You can — and should — help prevent sun damage at every age by following The Skin Cancer Foundation’s Prevention Guidelines.