Vitamin C You probably pop it whenever you feel a cold coming on, but turns out vitamin C can ward off wrinkles, too. The major multi-tasker works to protect collagen a few different ways: "Not only is it a co-factor for the enzymes that directly produce new collagen, it also helps block UV-induced collagen breakdown," says MacGregor. Plus, it's a powerful antioxidant that counteracts free radical-induced inflammation, which is known to damage collagen, she adds. Get in the habit of layering a vitamin C-based serum under your sunscreen every morning.
Our current fave: Image Skincare Vital C Hydrating Anti-Aging Serum, $60. And don't just apply your vitamin C, eat it, too! Studies have shown that ingesting the vitamin also has collagen-boosting effects, so load up on fruits and veggies like kiwi, red peppers, and Brussels sprouts.
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