Exercise, Sweat and Acne: How to Work Out Without Breaking Out

Regular exercise supports overall health, helps manage stress and improves sleep, all of which can be good news for acne-prone skin. Yet many people notice new spots on the forehead, chest, back or shoulders after they start working out regularly. Sweat itself does not cause acne, but the combination of sweat, heat, friction and trapped oil can encourage breakouts. A few simple habits make a big difference.

Why workouts can trigger breakouts

Trapped sweat and oil: when sweat mixes with oil and dead skin and stays on the skin, it can contribute to clogged pores.
Friction and pressure: tight clothing, sports bras, helmets, headbands and backpack straps rub against the skin. This form of acne is known as acne mechanica.
Heat: warm, humid conditions can increase inflammation and oil flow.
Shared surfaces: gym mats, benches and equipment collect sweat and residue from many people.
Makeup and heavy sunscreen: working out in full makeup can trap sweat in the pores.

Before your workout

Remove makeup or switch to a light, non-comedogenic tinted sunscreen if you exercise outdoors.
Tie hair back and keep styling products off your face and neck.
Wear breathable, moisture-wicking clothing that is not overly tight in areas where you break out.
Use a clean towel as a barrier on mats and benches.

During your workout

Pat sweat away, do not wipe: rubbing with a towel adds friction. Gently blot instead.
Keep hands off your face: your hands touch shared equipment all session.
Wash headbands and wristbands after each use if you wear them.
Stay hydrated: good for performance and comfort, even though drinking water alone will not clear acne.

After your workout

This is the most important step. Try to shower or at least cleanse within 30 minutes of finishing.

Change out of sweaty clothes as soon as possible, including sports bras and compression wear.
Cleanse your face with a gentle, non-comedogenic cleanser. Our guide to building a skincare routine covers suitable products.
Use a medicated body wash on the chest, back and shoulders if you get body breakouts. A benzoyl peroxide wash (left on for a minute or two before rinsing) or a salicylic acid wash can help.
If you cannot shower straight away, use a gentle cleansing wipe or micellar water on your face as a temporary measure, then cleanse properly later.
Wash gym clothes after every session rather than rewearing them.

Swimming and acne

Chlorine can be drying, and dried-out skin can become irritated. Rinse off after swimming and apply a light moisturiser. Use a water-resistant, non-comedogenic sunscreen for outdoor swimming.

Should acne stop you exercising?

No. The benefits of exercise for physical and mental health are significant, and regular activity can help reduce stress, which is a known acne trigger for many people. The aim is to adjust your routine around workouts, not to avoid them.

Supplements and gym diets

Some people notice breakouts when they start taking whey protein or certain bodybuilding supplements. The evidence is limited, but if you see a clear pattern, it may be worth discussing alternatives with a professional. Anabolic steroids are strongly linked to severe acne and carry serious health risks. Read more about food-related links in our article on diet and acne.

When to see a doctor

If body acne is widespread, painful, leaving marks or not improving after two to three months of consistent care, a doctor can recommend stronger treatment. Itchy, uniform small bumps on the chest and back after sweating may be fungal folliculitis rather than acne, which needs a different approach.

The bottom line

Exercise is good for your skin overall. Keep sweat from sitting on the skin, reduce friction, shower and change soon after training, and use a medicated wash on breakout-prone areas.