Wait — Does Sweat Actually Clog Your Pores? The Answer May Surprise You 

We often hail the post-workout glow (or the result of circulation delivering nutrients to the skin cells), but exercise comes with some valid complaints, too. Of course, working out is top-notch for skin in the long run, as it encourages cell turnover and nourishes your mental well-being (thus improving your skin health, too). But in the short term? Some people feel itchy, others turn fire-engine red, and a significant chunk face increased acne, both on the face and body. 

"Contrary to popular belief, sweat itself does not lead to pimples," board-certified dermatologist Joshua Zeichner, M.D., notes over on his Instagram. As we alluded to above, your sweat consists mostly of water, so it's not the main offender; in fact, board-certified dermatologist Ellen Marmur, M.D., even considers sweat the best natural cleanser for our skin, as she once told mbg about post-workout skin care.  

The problem arises when the sweat dries and mixes with oil and bacteria (from, say, touching a dirty yoga mat or exercise equipment). And because your pores are more open as your body heats up from exercise, that leaves room for the oil-sweat-bacteria mixture to sink in and lead to breakouts. On that note, makeup can also settle into your pores—which is why derms recommend you hit the pavement or mat makeup-free. 

While the sweat itself may not be clogging your pores, your skin still needs a good wash to clear any oil and bacteria. That said, always shower after an intense workout, or at the very least change out of the occlusive clothing.