Acne is not listed as an official side effect of Ozempic, but a growing body of evidence suggests the medication is linked to breakouts. A large matched study found that people taking GLP-1 receptor agonists like semaglutide (the active ingredient in Ozempic) were 36% more likely to develop acne within 90 days of starting treatment compared to nonusers. The connection appears to be strongest in women, and the reasons likely trace back to how dramatically these drugs shift your hormonal balance.
What the Research Actually Shows
The FDA’s prescribing label for Ozempic does not mention acne. The listed side effects focus on gastrointestinal problems: nausea, vomiting, diarrhea, abdominal pain, and constipation. That’s part of why the acne connection catches people off guard.
However, a study comparing over 162,000 GLP-1 receptor agonist users to the same number of matched nonusers found a statistically significant increase in acne diagnoses. The elevated risk persisted at one year, with users still 34% more likely to develop acne than people not on the medication. The finding applied across the class of drugs, including semaglutide, liraglutide, and tirzepatide.
The most striking detail: women on these medications were 53% more likely to develop acne after one year of treatment, while men showed no significant increase. That gender gap is a strong clue about the mechanism behind the breakouts.
Why Ozempic Can Trigger Breakouts
The connection between Ozempic and acne runs through insulin and the hormones it controls. When you carry excess weight, your body typically produces more insulin than it needs, a state called hyperinsulinemia. That excess insulin does several things that are relevant to your skin. It stimulates your adrenal glands and ovaries to produce more androgens (hormones like testosterone). It raises levels of a growth factor called IGF-1, which directly fuels oil production in your skin’s sebaceous glands. And it promotes the overgrowth of skin cells that can clog pores.
Ozempic lowers insulin levels and improves insulin sensitivity, which sounds like it should help your skin. In some people, it does. But the rapid hormonal shift itself can be destabilizing, especially for women. Your body has adapted to a certain hormonal environment, and when insulin, androgens, and growth factors all change at once, your skin can react unpredictably during the adjustment period.
IGF-1 plays a particularly important role. It acts as a growth signal for the oil-producing cells in your skin, and it also amplifies the effect of androgens by changing how androgen receptors function inside cells. When IGF-1 levels fluctuate during rapid weight loss, the downstream effects on oil production and pore-clogging cell turnover can go in either direction, clearing skin for some people and triggering new breakouts in others.
Why Women Are More Affected
The 53% increased risk in women likely comes down to how tightly female hormonal balance is tied to insulin. Insulin receptors sit directly on the ovaries, and insulin stimulates ovarian cells to produce androgens. Women with conditions like polycystic ovary syndrome (PCOS) are familiar with this loop: high insulin drives high androgens, which drives acne. When Ozempic rapidly changes insulin levels, the ovarian androgen output shifts too. The skin, which is slow to adapt to hormonal changes, can break out during the transition even if the long-term trend is toward improvement.
Men’s androgen production is less sensitive to insulin fluctuations, which likely explains why the studies found no significant acne increase in male users.
Other Skin Changes on GLP-1 Medications
Acne isn’t the only skin issue people notice on Ozempic. The American Academy of Dermatology acknowledges several skin, hair, and nail changes associated with GLP-1 drugs. Rapid weight loss can lead to loose or sagging skin, dryness, and increased skin-on-skin friction in areas where skin folds develop. Some people also report changes in sweating patterns. These effects are largely a consequence of the weight loss itself rather than the drug directly, but they can compound the frustration of dealing with new breakouts at the same time.
Managing Acne While on Ozempic
The American Academy of Dermatology recommends a gentle approach to acne that develops on GLP-1 medications. Your skin may be drier than usual during treatment, which means aggressive acne products can backfire by stripping moisture and triggering more irritation.
Start with alcohol-free cleansers and a moisturizer containing ceramides and antioxidants. These help maintain your skin barrier while you address breakouts. Retinoids can be effective for both acne and the early signs of skin aging that come with volume loss during weight loss, but use them cautiously. If your skin is already dry from the medication, retinoids can cause significant flaking and irritation.
Hydration matters more than usual. Drinking plenty of fluids supports skin from the inside, and applying moisturizer while your skin is still damp after washing helps lock in hydration. A humidifier can also help if your home environment is dry. Resist the urge to pick or pop breakouts, as your skin may heal more slowly during rapid weight loss when your body is prioritizing other metabolic processes.
For many people, the acne is a transitional issue. As your body adjusts to its new insulin levels and hormonal baseline over several months, breakouts often improve on their own. If they persist or are severe, a dermatologist can tailor a treatment plan that accounts for the specific skin changes GLP-1 medications cause.