Testosterone and Acne: Managing Skin Breakouts on TRT

# Testosterone and Acne: Managing Skin Breakouts on TRT

If you start testosterone replacement therapy and notice your skin breaking out — you're not imagining it. Acne is one of the most common reported side effects of TRT, affecting an estimated 20-40% of patients at some point during treatment.

The good news: it's manageable. Understanding why it happens is the first step.

Why Testosterone Causes Acne

Testosterone stimulates sebaceous (oil) glands in the skin. These glands produce sebum — the waxy substance that keeps skin moisturized but, in excess, contributes to clogged pores and acne.

Specifically, androgens (testosterone and its more potent metabolite, DHT) bind to androgen receptors in sebaceous gland cells, triggering: - Increased sebum production - Accelerated skin cell turnover (hyperkeratinization) - Proliferation of Cutibacterium acnes bacteria in clogged pores - Inflammation

This is the same mechanism behind teenage acne — puberty raises testosterone, glands go into overdrive. TRT recreates that hormonal environment, particularly in the early weeks as testosterone levels rise significantly.

Who Gets TRT Acne?

Not everyone develops acne on TRT. Risk factors include:

• Personal history of acne: Most predictive factor. If you had significant acne in adolescence, you're more likely to see it return
• Genetics: Sebaceous gland sensitivity to androgens is partly inherited
• High DHT: Some men convert testosterone to DHT aggressively (via 5-alpha reductase enzyme). DHT is more potent than testosterone at stimulating sebaceous glands
• High free testosterone: Levels that are well above physiological range increase androgen stimulation
• Gel/cream formulations: Some patients find topical testosterone (applied to skin) causes more localized acne than injections
• Early treatment period: The first 3-6 months of TRT, before the body adjusts, often see the highest acne incidence

Types of TRT-Related Acne

TRT acne typically appears on the: - Back and shoulders (most common — "bacne") - Chest - Face (jawline, cheeks)

It can range from mild comedones (blackheads/whiteheads) to moderate inflammatory acne (red papules, pustules) to, rarely, severe nodulocystic acne.

Management Strategies

### 1. Optimize Your Protocol First

Before reaching for medications, check that your testosterone levels are in a physiological range — not supraphysiological. TRT is about restoring normal levels, not maximizing them. If your free testosterone is at the high end of normal or above, a slight dose reduction may resolve acne without other interventions.

Also worth checking: estrogen and DHT levels. Elevated estrogen can worsen acne independently, and high DHT is a primary driver.

### 2. Topical Treatments (First Line)

Benzoyl peroxide (2.5-10%): Kills C. acnes bacteria, reduces inflammation, unclogs pores. Most effective OTC option. Start at 2.5% to minimize irritation. Use on face, back, chest.

Salicylic acid (2%): Exfoliates inside pores, effective for comedones (blackheads/whiteheads). Good for maintenance.

Topical retinoids (tretinoin, adapalene): Prescription-strength tretinoin is highly effective for acne. Adapalene (Differin) is OTC and nearly as effective. Normalize skin cell turnover and prevent clogged pores.

Topical antibiotics (clindamycin, dapsone): Prescription. Effective for inflammatory acne. Usually combined with benzoyl peroxide to prevent antibiotic resistance.

Consistent use for 8-12 weeks is needed to evaluate efficacy — skin takes time to turn over.

### 3. Oral Treatments (Moderate-to-Severe)

Oral antibiotics (doxycycline, minocycline): Effective short-term for moderate-to-severe inflammatory acne. Usually used for 3-6 months alongside topical agents. Not long-term solutions due to antibiotic resistance concerns.

Isotretinoin (Accutane): The nuclear option. Dramatically reduces sebaceous gland activity. Highly effective for severe or treatment-resistant acne, including TRT-induced acne. Requires monitoring (labs, pregnancy prevention for female patients), but produces lasting results. Some men on TRT use a course of isotretinoin to "reset" their skin.

Finasteride: Reduces DHT by ~70%. If elevated DHT is driving your acne, finasteride may help. Has dual benefit if you're also experiencing TRT-related hair thinning. Discuss with your physician.

### 4. Delivery Method Adjustment

Some patients find that switching from daily topical testosterone (gel/cream) to weekly injections significantly reduces acne. Topical application often creates high local androgen concentration on the skin, worsening acne in the application areas.

If you're using topical testosterone and experiencing significant bacne/shoulder acne in particular, this is worth discussing with your physician.

### 5. Skincare Habits

Basic measures that genuinely help: - Shower promptly after workouts — sweat and bacteria on skin worsen acne - Change pillowcases 2x/week — oil and bacteria accumulate on fabric - Don't touch your face — transfers bacteria - Use non-comedogenic moisturizer — keeps skin barrier intact without clogging pores - Avoid harsh scrubbing — irritation worsens inflammation

### 6. Diet (Supporting Evidence)

High-glycemic index foods, dairy (particularly skim milk), and excessive saturated fat have been associated with acne in some studies. The evidence is moderate, not definitive — but if you're struggling with acne on TRT, reducing high-glycemic foods and dairy for 8 weeks is a reasonable experiment.

Does TRT Acne Go Away?

For many patients, yes — naturally. The initial months of TRT often produce the worst skin as the body adjusts to elevated hormone levels. Many men find their acne significantly improves after 6-12 months even without specific intervention.

For others — particularly those with a strong genetic predisposition to acne — management requires ongoing attention. The key is not accepting acne as inevitable or, worse, stopping TRT because of it. Effective treatment options exist.

When to See a Dermatologist

Consult a dermatologist if: - Acne is spreading despite topical treatment attempts - You're developing nodular or cystic acne (painful, deep lesions) - You're considering isotretinoin (requires prescription and monitoring) - Acne is significantly affecting your quality of life

Your Marrow physician can coordinate referrals and discuss protocol adjustments alongside dermatology treatment.

At Marrow, we treat the whole patient — not just hormone numbers. Acne management is part of comprehensive TRT care. [Start your consultation →](/start)