Working out—whether you're running or lifting weights—can make your skin firmer and more elastic by boosting the production of key skin-building proteins, and lifting weights does something extra: it...

Different kinds of exercise help your skin in different ways: lifting weights boosts certain skin-building molecules, while cardio boosts others—so your skin might get healthier in unique ways depending on whether you lift or run.

After people lift weights, their blood contains special signals that tell skin cells to make more of the structural stuff that keeps skin firm and youthful—like a natural anti-aging boost from exercise.

Working out with weights or cardio for 16 weeks can make your skin tighter and healthier-looking by improving the support structure underneath it—no magic creams needed!

Lowering weights slowly makes the connective tissue around your muscles rebuild and strengthen more than lifting does, helping your muscle adapt structurally.

Working out with weights may help your skin make more of a gooey substance that keeps it plump, while cardio like running or biking helps your skin make more of the strong fibers that give it structure—so different types of exercise might help your skin in different ways.