TRT Acne: Why Testosterone Causes Breakouts and What Actually Helps

The Short Answer

Breakouts on your back, shoulders or face after starting TRT can feel like being 16 again. The cause is well understood, and so are the fixes. The key question is whether you have a skin problem to treat or a dosing problem to raise with your prescriber. Sometimes it's both.

For the full list of TRT side effects, see our TRT side effects guide. This article covers acne only.

Why TRT Causes Acne

Acne starts in the pilosebaceous unit, the hair follicle and its attached oil (sebaceous) gland. Four things drive it: excess oil (sebum), follicles that plug with dead skin cells, the skin bacterium C. acnes (formerly P. acnes), and inflammation.

Androgens control the first of those. A 2016 review in Clinical, Cosmetic and Investigational Dermatology calls androgens "the most important of all hormones regulating sebum production." It notes that sebaceous gland cells contain 5-alpha reductase, which converts testosterone into DHT. DHT is roughly 5 to 10 times more active.

TRT adds to both sides of that equation:

• More testosterone reaching the oil glands.
• More DHT. In a 12-month randomized trial in men 60 and older, weekly testosterone enanthate at 125 mg (a higher-than-replacement dose) raised serum DHT.
• Peaks, if you inject. The Endocrine Society guideline notes that after an intramuscular injection of testosterone enanthate or cypionate, levels rise into the supraphysiological range before declining. It adds that those peaks and troughs "may be associated with fluctuations in symptoms."

How Common Is Acne on TRT?

FDA labels give the cleanest numbers, because they come from controlled trials with defined doses.

Sources: the AndroGel 1% label, the Xyosted label and the Depo-Testosterone label (revised June 2025).

Two takeaways. First, the rates are single digits, so most men on TRT in these trials didn't report acne. Second, the AndroGel numbers climb with dose: 1%, then 3%, then 8%. The 50 mg and 100 mg groups were randomized, but the 75 mg group was made up of men whose dose was raised after a blood test, and the label doesn't spell out how the table assigns men to groups. So this is suggestive rather than proof that higher doses cause more acne. It is still a reason levels matter when acne shows up. AndroGel's label lists acne among its most common adverse reactions.

No delivery method is acne-free on these labels. Gels, a weekly subcutaneous injection and intramuscular cypionate all list it.

If you use gel or cream, watch your partner's skin too

The AndroGel label lists "a significant increase in acne" in women as a possible sign of secondary testosterone exposure from skin contact. If your partner breaks out after you start a gel or cream, raise it with your prescriber. Our guide to cream absorption and transfer covers prevention.

When Acne Is a Dosing Question

Skin treatments, covered in the next section, work on the skin. They don't address why your oil glands are being overstimulated. Bring acne up with your TRT prescriber, not just a dermatologist, if any of these apply:

• Acne started or clearly worsened after you began TRT or increased your dose.
• Flares seem to follow your injection schedule.
• Your last labs showed testosterone above the target range.
• Acne is severe, painful, cystic or scarring.
• Your partner developed acne after you started a gel or cream.

What your prescriber may look at

Your levels and when they were drawn. The Endocrine Society suggests aiming for testosterone in the mid-normal range during treatment. A level drawn right after an injection reads very differently from one drawn before the next. Our guide to lab timing explains why.

Dose. The AndroGel data show acne more common at the higher dose. If your levels run high, a lower dose is a logical first discussion. See dialing in your dose.

Frequency or route. The idea behind smaller, more frequent injections is flatter levels with lower peaks. We didn't find controlled trials showing this reduces acne. The rationale is the peak-and-trough pattern the Endocrine Society describes. Compare the options in twice-weekly vs weekly injections. Switching delivery method is another option, but every route on the labels above lists acne.

What to bring to that conversation

A clear record makes this a short, useful discussion instead of a guess:

• Timing: when the acne started relative to your first dose and any dose changes.
• Your injection or application log: dates, doses, and which days the skin looks worst.
• Your latest labs, with the draw time: how many hours or days after your last dose the blood was taken.
• What you've already tried: product names, strengths and how many weeks you used them consistently.
• Photos: a few dated pictures show trends better than memory does.

If your current clinic won't recheck labs or discuss adjustments when side effects show up, that's a reason to look elsewhere. Our clinic comparison can help you weigh the alternatives.

What Helps: The Dermatology Evidence

Acne on TRT is still acne, and the guideline-based treatments are the usual starting point, though we found no trials in men on testosterone therapy. The American Academy of Dermatology's 2024 acne guidelines (Reynolds et al., JAAD) grade the options:

The AAD's guideline summary also lists two good-practice points: limit systemic antibiotics, and combine them with benzoyl peroxide and other topicals.

Over-the-counter first steps

For everyday breakouts, the two strongly recommended topicals are easy to get. The FDA has approved adapalene (Differin) 0.1% gel for over-the-counter use in people 12 and older. Benzoyl peroxide is widely sold OTC.

If you saw the 2025 benzene headlines: the FDA tested 95 benzoyl peroxide acne products and found that more than 90% had undetectable or extremely low benzene. Six products with elevated levels were recalled from store shelves. The FDA called the cancer risk from these products very low and advised discarding expired products.

Clascoterone: an anti-androgen that works in the skin

For men on TRT, clascoterone (Winlevi) is the treatment that sounds made for the problem. Its prescribing information classifies it as an androgen receptor inhibitor applied to the skin twice daily. Even so, the label says its mechanism in acne is unknown.

It isn't risk-free. In a 2-week study, 1 of 20 adults (5%) showed HPA axis (adrenal) suppression; all affected users were back to normal at a 4-week follow-up. Potassium rose to above-normal levels in 5% of users vs 4% on vehicle. The label doesn't address use in men on testosterone, and the AAD rates it as a conditional recommendation. Discuss it with a dermatologist rather than treating it as a TRT-specific fix.

Isotretinoin for severe or scarring acne

Deep, painful nodules or acne that leaves scars calls for a dermatologist, not another cleanser. Isotretinoin carries the AAD's strong recommendation for that situation. According to the AAD's patient guide, it's prescribed through the FDA's iPLEDGE REMS program, with dermatologist follow-up every 30 days, in person or by telemedicine. Follow your dermatologist's and the iPLEDGE program's current rules. Tell the dermatologist you're on TRT so both prescribers see the full picture.

The Bottom Line

TRT acne is a recognized side effect that appears more common at higher doses, and the standard acne toolkit is the usual starting point. A practical sequence:

1. Start with the strongly recommended basics: benzoyl peroxide and a topical retinoid such as OTC adapalene.
2. Note the pattern: when it started, where it shows up, and whether it tracks your injection days.
3. Bring it to your next TRT check-in with your labs, and ask whether your levels are above target and when they were drawn.
4. See a dermatologist for painful, cystic or scarring acne, or if over-the-counter products aren't enough. Prescription options from topical antibiotics to isotretinoin carry strong or conditional recommendations in the AAD guideline.
5. Let your prescriber make any protocol change, whether that's dose, frequency or route, and recheck labs afterward.