Those hitting the gym on account of their New Year’s resolutions are likely reaping the benefits, including improved overall health and mood. However, gymgoers may also find that their skin is breaking out more than usual, putting a damper on that post-workout glow.

According to dermatologists from the American Academy of Dermatology, working out can cause excessive sweating, as well as a buildup of oil, dirt and bacteria on your skin — all of which can lead to acne. Despite this, people don’t have to quit exercising in order to see clearer skin. The key, say dermatologists, is to maintain proper hygiene before, during and after your workouts.