Tanning lotions...

Most tanning lotions (sunscreens) come with expiration dates, and they shouldn’t be ignored.

That’s because “a sunscreen’s active ingredients break down and don’t work as well,” says Francesca Fusco, M.D., an assistant clinical professor of dermatology at Mount Sinai Medical Center.

Sun solution: Toss sunscreens that have passed their expiration date and buy new bottles. Besides, having out-of-date ones means you’re probably not using enough.