"I spent 10 years as a lifeguard, and it really weathered my skin, so now I have frown lines like an old man. What can I do?" - Mack R., Boise, ID

“Chronic exposure to the sun’s UV rays takes a toll on the skin,” thinning it faster by robbing it of elasticity and collagen, says Karen H. Kim, M.D., of SkinCare Physicians in Chestnut Hill, MA. And that causes—you guessed it—wrinkles like those between the eyes, called frown lines.

There are several non-medical ways to minimize wrinkles, Kim says, like using skin creams containing retinol, which stimulates collagen and exfoliates skin; scrubbing with cleansing grains to spur skin regeneration; and using home peels (just don’t combine them with retinol).

But if you need the big guns, the best way to soften frown lines is with injections of a botulinum toxin like Xeomin, which immobilizes muscles for up to several months, relaxing the lines so they’re not as visible.

Keep reading for a list of our nine other recommended products (retinol creams, scrubs, and peels). Oh, and stay the hell out of the sun.