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Does Accutane lower testosterone? What studies of men found

By Nicki Wilson in Accutane · Published October 2, 2026 · Updated October 9, 2026

Does Accutane lower testosterone: spun serum blood tubes in a rack beside a blister strip of isotretinoin softgels on a lab bench

Quick answer: Three studies that reported men’s results on Accutane® (isotretinoin) found no meaningful change in blood testosterone. Two studies whose results weren’t split by sex found drops, and a study of teenagers that included girls found a rise. The two FDA-approved labels we read don’t list low testosterone as a side effect. A small study of six men found lower DHT in the blood, and another found drops in related androgens tied to the skin’s oil glands.

Many men who search this wonder whether a course will cost them muscle, sex drive or the feeling of being themselves. This article lines up the human studies we could verify on PubMed, says how big each one was, and quotes what the labels say.

The Goal Is Clear runs an iPledge Concierge for Accutane® patients, so the iPledge sections come from tracking these monthly steps every day. Nothing here replaces the conversation with the board-certified dermatologist who reviews your case. BNG Health Services, LLC operates The Goal Is Clear and is not the prescribing physician.

Does Accutane lower testosterone in men?

In most studies of men, it didn’t change blood testosterone in a way researchers called meaningful. A 1988 study in Archives of Dermatology treated 15 men and 9 women for 20 weeks. It found isotretinoin had no meaningful effect on total or free testosterone, apart from a rise in free testosterone in the women. A 1995 study of six men in the Journal of Clinical Endocrinology and Metabolism found no change in serum testosterone after three months.

The largest study we found that tracked only men’s hormones points the same way. A 2016 study in Cutaneous and Ocular Toxicology followed 81 men over 18 through six months of isotretinoin. It reported no significant change in total testosterone, or in the pituitary hormones FSH and LH.

The FDA-approved labels are quiet on this point too. Neither the Accutane® prescribing information nor the Absorica® label on DailyMed uses the word testosterone. Their lists of reported reactions don’t include low testosterone, and that absence tells you something, though it doesn’t prove the drug never moves the number.

What do the studies on isotretinoin and testosterone show?

They don’t all agree, and the ones that found changes were small, mixed men and women, or didn’t report men separately.

Isotretinoin and testosterone studies: centrifuged serum sample tubes loaded in a lab hormone analyzer

Which studies found no real change?

The 1988, 1995 and 2016 studies described above found no meaningful change in men’s blood testosterone. The 2016 group of 81 adult men followed for six months is the largest of the three.

Which studies found a drop or a rise?

A 1997 study in Acta Dermato-Venereologica saw no marked hormone changes after four weeks in 19 patients. After 12 weeks, testosterone and two related androgens fell in 6 of 9 patients. The authors still concluded that the drug’s effects on serum hormone levels are small and unlikely to matter for clearing acne.

A 2015 study in Dermatology measured 105 acne patients on three different dose schedules. After three months, total testosterone in the whole group had decreased significantly, along with LH, cortisol and several other hormones. The authors wrote that pituitary hormone changes were more pronounced at the higher dose, without saying the same about testosterone. The abstract doesn’t report results for men separately.

A 2021 study in Cureus went the other direction. It followed 76 teenagers with nodulocystic acne, a group that included girls, and measured hormones at three and six months. Free and total testosterone were higher at both checkpoints than before treatment.

Why do the study results disagree so much?

Some enrolled only men, some mixed men and women, and one studied teenagers. Group sizes run from 6 to 105, measurements run from four weeks to six months, and dose schedules vary. None of them is a large controlled trial built to answer this exact question.

So the honest summary is that a lasting drop in testosterone hasn’t been shown in men. A temporary dip in some patients can’t be ruled out either. Anyone who tells you the answer is a flat yes or a flat no is reading more into these studies than they hold.

Why does DHT activity fall when testosterone doesn’t?

Isotretinoin shrinks the skin’s oil glands, and those glands are one of the places the body turns testosterone into stronger androgens. The American Academy of Dermatology explains that during puberty, hormones called androgens increase the size of the skin’s oil glands. Bigger glands make more oil, which can clog pores.

The 1988 study found that while testosterone held steady, a blood marker of androgen made in tissue fell in men. In women, DHT itself dropped as well. The authors believed these decreases were the result of smaller oil glands, not the cause of them. In other words, the drop may reflect what the glands normally add to the hormones circulating in the blood.

The 1995 study of six men found something similar in the blood, plus a change inside the skin. Serum testosterone didn’t change, yet serum DHT and its breakdown products decreased significantly. Biopsies from the men’s backs showed a 2.6-fold drop in the skin’s androgen receptor binding capacity after three months. That’s a change in the skin’s androgen receptors, which isn’t the same thing as your body making less testosterone.

The drug acts on the oil gland, while blood testosterone mostly stays put in these studies.

Does Accutane permanently lower a man’s testosterone?

No study we could verify shows a permanent drop, and none followed men’s testosterone for years after treatment. The longest measurements in this group of studies stop at six months, which is about the length of a course. The American Academy of Dermatology says one course of treatment takes about four to five months, though dermatologists tailor it to each patient.

The fertility research gives some indirect comfort. A 2026 meta-analysis in International Urology and Nephrology reviewed six clinical studies with 225 men, including three groups of men treated for infertility. No study in it reported impaired fertility or new sexual dysfunction during treatment, and the authors rated the certainty of the evidence as low to moderate. Their conclusion was that current clinical data don’t support reproductive harm from isotretinoin.

The Accutane® label reports human semen studies too. In studies of 66 men, 30 of whom were treated for nodular acne, no significant changes were noted in sperm count or motility. A separate study of 50 men aged 17 to 32 found no significant effects on semen volume, count, motility or morphology. In dogs given 10 or 30 times the clinical dose for about 30 weeks, the label notes testicular atrophy and appreciable depression of sperm production. Some sperm were still seen in every testis examined.

A 2023 study in Annals of Medicine found a mixed picture in 46 men after six months. Semen volume, sperm count and motility rose from where they started, while sperm shape got worse. If fertility timing matters to you, raise it with your prescriber before day one.

Can Accutane affect sex drive or erections?

The Absorica® label lists it as a possible reaction, while the studies so far offer weak evidence that the drug is the cause. The label names sexual dysfunction that may continue after treatment stops, including erectile dysfunction and decreased libido. A 2024 scoping review in Clinical and Experimental Dermatology covered 46 human studies with 2,420 patients. It found very weak evidence for a link, and more than half of those studies reported a neutral or beneficial effect.

A 2025 research letter in the Journal of the American Academy of Dermatology reported no association in a large retrospective cohort of acne patients. Weak evidence isn’t proof of no risk, and the label lists these as reactions that have been reported. Tell your prescriber about any sexual health concern before you start, so there’s a baseline on record.

Men also ask whether the drug reaches a partner. The Accutane® label says it’s found in the semen of male patients. The amount delivered to a partner who can become pregnant would be about one million times lower than an oral 40 mg dose. The label adds that the no-effect limit for birth defects is unknown. Our article on Accutane® and sex drive goes deeper on desire and libido.

What should men who lift, use TRT or take supplements tell their prescriber?

Tell your prescriber everything you take, including anything you’d normally leave off a form. That means testosterone therapy, anabolic steroids, pre-workout blends, greens powders and multivitamins.

Accutane and supplements: an unlabeled protein tub, vitamin bottle, shaker and isotretinoin blister strip on a weight bench

Vitamin A is the supplement the label names directly. The Accutane® prescribing information advises against vitamin supplements containing vitamin A, to avoid additive toxic effects, since isotretinoin is related to vitamin A. MedlinePlus also lists vitamin A supplements among products that may interact with isotretinoin.

If you already use testosterone therapy and your acne started or worsened after, say so plainly. Whether isotretinoin fits that situation is a clinical call, and we don’t give advice on testosterone or steroid use.

If you want a number to compare later, ask your prescriber whether a testosterone test before month one makes sense for you. The Absorica® label’s required tests for all patients are a fasting lipid profile and liver function tests, so a hormone panel isn’t automatic. A dated baseline turns a vague worry into a question someone can answer. Gym and joint questions are covered in our article on side effects of Accutane® for men.

How does iPledge work for men on Accutane?

A man who cannot get pregnant still enrolls in iPledge, but he doesn’t take pregnancy tests. Until the November 15, 2026 changes take effect, the Accutane® label says patients who cannot become pregnant must get each prescription within 30 days of the office visit. They must not donate blood during treatment or for one month after it ends. The pharmacy can dispense no more than a 30-day supply, and every refill needs a new prescription and a new authorization.

Under the current rules, that 30-day window counts from your office visit, and the date is easy to forget. We’ve never seen iPledge send a countdown before a window closes, so a missed date can cost you that month’s fill with no warning. The iPledge Concierge tracks your windows, testing cadence and refill timing through the course.

Blood work has a trap of its own. The lab order is a separate document from your visit note, and in our experience people often arrive at the draw site holding the wrong paper. Keep the actual order where you can pull it up on your phone.

The rules for men are about to change. The FDA approved iPLEDGE modifications on February 9, 2026 and later delayed implementation until November 15, 2026. Once they take effect, there will no longer be a 30-day prescription window for patients who cannot get pregnant. Monthly documentation of counseling in the program will no longer be required for them either. As of October 2, 2026, those changes aren’t in effect, and the current rules apply until the November 15, 2026 changes take effect.

One pattern shows up at the end of a course. In the final month people often let the logistics slide, and under the current rules the last refill can expire in its window. Put that last pickup date on your calendar like the first one. Our iPledge FAQ covers how the program works and the changes coming November 15, 2026.

How does BruhRX fit if you’re weighing Accutane?

BruhRX is The Goal Is Clear’s acne path for men, and a board-certified dermatologist licensed in your state reviews your case. The company doesn’t use nurse practitioners or physician assistants for acne diagnosis or prescription decisions. You take a quiz of about two minutes and upload photos. A board-certified dermatologist reviews your case within 24 hours, and you see their name, photo and license before treatment starts.

The plan can be a prescription topical, an oral antibiotic or, when the board-certified dermatologist agrees it’s a fit, Accutane® with an iPledge Concierge. A prescription is never guaranteed, and results vary from person to person. If you’ve read about hormone pills for acne, the American Academy of Dermatology says spironolactone isn’t prescribed to treat acne in men because of side effects.

The Clear Course is cash-pay, and the partner pharmacy runs your insurance on the medication when you have coverage. Lab fees aren’t included in the Clear Course, and some eligible insured patients pay as low as $0 for the prescription. Plan prices are on the pricing page, and the full split sits on the page about what Accutane® costs.

Accutane® through BruhRX is available in all 50 states plus Guam when clinically appropriate, with eligibility confirmed at intake. Teens 13 and up can enroll with a parent or guardian’s consent. Details for men are on the acne treatment for men FAQ, and the full start path is on getting Accutane® online.

Common questions about Accutane and testosterone

Does Accutane lower testosterone for every man? No, and the studies that reported men’s results found no meaningful change in blood testosterone. A 2016 study of 81 men saw no significant change over six months. Two studies whose results weren’t reported by sex, from 1997 and 2015, did find drops, so the evidence isn’t uniform.

Does Accutane permanently lower a man’s testosterone? No verified study shows a permanent drop, but none tracked men’s levels for years after treatment either. The studies we found stop at six months or sooner. A 2026 meta-analysis of 225 men found no study reporting impaired fertility.

Does Accutane lower DHT in the skin? Studies found lower blood levels of DHT and related androgens that come from tissue such as the skin’s oil glands. Researchers in 1988 believed this follows from smaller oil glands, rather than causing it. A 1995 study of six men found lower blood DHT with no change in serum testosterone.

Will Accutane affect my gains in the gym? The studies we found didn’t measure muscle, so we can’t answer that from evidence. The studies that reported men’s results saw no meaningful change in blood testosterone. Tell your prescriber how hard you train, because the labels link vigorous exercise with raised muscle enzymes and note rare reports of serious muscle breakdown.

Should I get my testosterone tested before starting Accutane? It isn’t one of the tests the Absorica® label requires for all patients, which are a fasting lipid profile and liver function tests. Ask your prescriber whether a baseline test makes sense for you.

What should you do with this before starting Accutane?

Take the questions this article raised to the board-certified dermatologist who reviews your case. Put testosterone therapy, steroids, supplements, sex drive and fertility plans on the same list. Until the November 15, 2026 changes take effect, learn your iPledge window date, because a missed window means that month’s prescription can’t be filled.

If you want a board-certified dermatologist to look at your acne, start your consult with the two-minute quiz. A prescription is never guaranteed, and whether Accutane® fits is the board-certified dermatologist’s clinical decision.

This article is general information, not medical advice. Treatment decisions stay with the board-certified dermatologist who reviews your case, and a prescription is never guaranteed. Accutane® and Absorica® are registered trademarks of their respective owners, and isotretinoin is the generic name. The Goal Is Clear is operated by BNG Health Services, LLC, which is not the prescribing physician; independent board-certified dermatologists prescribe.

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General information from published sources, not medical advice. Your dermatologist makes every treatment decision after reviewing your case. The Goal Is Clear is operated by BNG Health Services, LLC, which is not the prescribing physician.

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