Perimenopause Facial Hair: Why Chin Hairs Appear and What Works
Written by Cathy — Founder, VibranceWay | 3rd November 2026 · 10 min read · Fact-checked against primary sources, peer-reviewed research only
I found it at a red light on Waiyaki Way, in that flat midday glare that hides nothing. One black hair on my chin, thick as fishing line and almost two centimetres long, sitting there like it had paid rent. I pulled it out with the eyebrow tweezers I keep in the glovebox, and a week later two more had turned up beside it. That was the week perimenopause facial hair stopped being someone else's problem and became a line in my notebook.
A quick, honest word first. I'm Cathy, and I'm not a doctor, nurse or dermatologist. I'm a woman in the thick of perimenopause who reads the original studies, tests things on my own body and writes down what actually happens. Everything on VibranceWay is my best reading of the evidence, shared the way I'd share it with a friend over chai. It isn't medical advice, so if something here rings an alarm bell for you, take it to a clinician who can examine you in person. |
Key Takeaways
A seven-year study of 172 women (Burger, Journal of Clinical Endocrinology & Metabolism, 2000) found SHBG fell about 43% and the free androgen index rose about 80% across the menopause transition, while total testosterone did not change.
*Sex Hormone-Binding Globulin (SHBG)
The sharpest part of that shift came roughly two years before the final period, inside perimenopause.
Androgens thicken facial hair while thinning scalp hair (Inui and Itami, Experimental Dermatology, 2013), so chin hairs and a widening parting often arrive together.
In two randomised trials with 594 women, 32% using eflornithine 13.9% cream reached marked improvement at 24 weeks, versus 8% on a dummy cream.
In a 2007 trial of 31 women, eflornithine plus laser cleared hair completely or almost completely on 93.5% of treated sides, versus 67.9% with laser alone.
In a 2024 study of 51 postmenopausal women referred for androgen excess, 8% had borderline or malignant tumours, so fast-appearing hair with voice or hairline changes needs prompt attention.
The short answer: Perimenopause facial hair usually comes from a hormone ratio shift, not a testosterone surge. Estrogen falls, and so does SHBG, the protein that binds testosterone. More testosterone circulates free. Chin and upper-lip follicles respond by growing coarse, dark hairs.
Why Does Perimenopause Cause Facial Hair? It's a Ratio Shift
I assumed my testosterone had spiked. Most of the internet says so, and the research says it's mostly wrong. What changes in perimenopause is the balance between hormones, and that balance is what your chin follicles respond to.
A 2000 study in the Journal of Clinical Endocrinology & Metabolism by Burger followed 172 Melbourne women for seven years and found that sex hormone-binding globulin (SHBG) fell by about 43% across the menopause transition, while the free androgen index rose by about 80%. Total testosterone stayed flat. In the researchers' own words: "T remains unchanged during the menopausal years." — Burger, Journal of Clinical Endocrinology & Metabolism, 2000
In plain language: SHBG is a carrier protein that holds testosterone in your bloodstream, so most of it never reaches a hair follicle. Estrogen keeps SHBG up. As estrogen falls, SHBG falls with it and more testosterone floats free. Endocrinologist Angelica Lindén Hirschberg's 2023 review of androgen excess after menopause calls the result a shift toward relative androgen dominance.
Burger also found SHBG ran about 4% lower for every extra point of BMI, and Hirschberg lists insulin resistance among the things worth checking, which is why I read chin hairs alongside what insulin resistance does to your metabolism in perimenopause.
My own notebook tells the same slow story: one hair in March, eleven by August, almost all on the left side of my chin.
What this means practically: Keep an 8 to 12 week log of how many hairs you remove, where, and anything else new (acne, scalp thinning, cycle changes), and take it to your appointment. 🔵 Expert consensus (clinical agreement, limited RCT) |
Why Chin Hairs Grow While Your Scalp Hair Thins
This is the part that made me laugh out loud. My parting was getting wider. My chin was sprouting. Same hormones, opposite results. The answer sits inside the hair follicle itself. Follicles on your face and your scalp read androgens differently.
A 2013 review in Experimental Dermatology by Inui and Itami described this paradox. In their words, "androgens stimulate beard growth but suppress hair growth in androgenetic alopecia." — Inui and Itami, Experimental Dermatology, 2013
Signals from cells at the base of each follicle differ by body site. So free testosterone can thicken a chin hair and shrink a scalp hair. Burger's 2000 data put the sharpest androgen shift 2.2 years before the last period. That is why both changes can start in your early forties.
I covered the scalp side in my article on perimenopause hair loss. If both are happening to you, they are one story, not two.
I tracked both for six months. Hairs on my chin went up. Hairs in my shower drain went up too.
What this means practically: Mention chin hairs and scalp thinning together, at the same appointment. Doctors read them as one androgen picture. 🔵 Expert consensus (clinical agreement, limited RCT) |
Is It Perimenopause or PCOS? How to Tell the Difference
When I typed "sudden chin hair at 42" into Google, half the results said polycystic ovary syndrome (PCOS). I didn't have it, but the question is fair: PCOS doesn't retire when your periods do.
Hirschberg's 2023 review in the Journal of Clinical Endocrinology & Metabolism cites a Swedish follow-up in which 33% of postmenopausal women with PCOS had hirsutism, compared with 4% of women without PCOS, at an average age of 81. Hirsutism is the medical term for coarse, dark hair growing in a male-type pattern.
The clues are mostly in your history. PCOS-related hair usually starts in the teens or twenties, often with irregular cycles and acne. Perimenopausal facial hair tends to arrive later, as a few coarse chin or lip hairs in a woman whose cycles were once fairly regular.
If hormonal acne is coming back in your 40s too, that's the same androgen pathway in a different place. The Endocrine Society's 2018 hirsutism guideline recommends testing androgens when a clinician's hirsutism score is abnormal, using early-morning testosterone, and screening higher-risk women for an adrenal enzyme condition called non-classic congenital adrenal hyperplasia. Notice who it was written for: premenopausal women only. That tells you how thin the research on women our age still is.
I asked for testosterone and SHBG to be added to my routine bloods. Both came back inside normal ranges, which fits the ratio story rather than a disease story.
What this means practically: Ask for an early-morning blood test covering total testosterone and SHBG. If your cycles were always irregular, ask directly about PCOS. 🔵 Expert consensus (clinical agreement, limited RCT) |
When Is Facial Hair in Perimenopause a Red Flag?
Most chin hairs are a nuisance, not a warning. A small number are a warning. Speed is the clue I watch most closely. Slow change over years is typical. Fast change over a few months is not.
A 2024 study in the Journal of Endocrinological Investigation by Luque-Ramírez reviewed 51 women. All were postmenopausal and referred to a Madrid hospital for androgen excess. Four of them, or 8%, had borderline or malignant tumours. That is a specialist referral group, not everyday women. Still, it shows why fast change deserves a proper look.
Hirschberg's 2023 review names the level doctors watch. "Testosterone >5 nmol/L is associated with virilization and requires prompt investigation." — Hirschberg, Journal of Clinical Endocrinology & Metabolism, 2023
Virilization means masculine changes that go well beyond a few chin hairs. Think a deepening voice. Think a receding hairline. Think an enlarged clitoris. Any of these, with fast hair growth, needs a doctor soon.
I set myself one plain rule. If my monthly count doubles in three months, I book an appointment.
What this means practically: See a doctor promptly if facial hair appears fast, spreads well beyond the chin and lip, or comes with voice, hairline or genital changes. 🔵 Expert consensus (clinical agreement, limited RCT) |
Plucking, Threading or Shaving: Managing Chin Hair Day to Day
I've plucked, threaded and shaved, and my verdict is boring: the best method is the one you'll keep doing. What surprised me was the head space the hairs took up.
A 2006 study in the Journal of Psychosomatic Research by Lipton found that 88 women with unwanted facial hair spent an average of 104 minutes a week managing it, 67% checked mirrors continually, and 40% felt uncomfortable in social situations. They were being assessed for PCOS, not perimenopause, but the habits will sound familiar.
Plucking and threading pull the whole hair from the root, so each hair takes longer to return. Shaving cuts at the skin: quicker and painless, but needs repeating more often.
On my skin, plucked hairs sometimes curl back under the surface and leave a small dark mark, so I switched to threading for clusters and kept tweezers for strays. I also moved the tweezers out of the car. Checking my chin at every red light was costing me more than the hairs were.
What this means practically: Pick one method and give it a fixed weekly slot of five to ten minutes in good daylight, instead of checking your chin all day. 🟡 Emerging evidence (small studies, n<200) |
Does Laser Hair Removal Work for Perimenopause Facial Hair?
Most laser marketing is written for pale skin and dark hair. I'm a Kenyan woman with dark skin and a growing number of grey hairs, and that combination changes the answer.
The Endocrine Society's 2018 hirsutism guideline suggests laser or light-based removal for auburn, brown or black hair, electrolysis for white or blonde hair, and, for women of colour, long-wavelength, long-pulse Nd:YAG or diode lasers used with skin cooling.
A 2007 study in the Journal of the American Academy of Dermatology by Hamzavi found that adding eflornithine cream to laser cleared hair completely or almost completely on 93.5% of treated face sides, compared with 67.9% with laser alone, in 31 women.
Laser targets the pigment inside the hair, so colour matters. Grey and white hairs have little pigment left, which makes electrolysis (destroying each follicle with a tiny electric current) the better tool as we grey. On darker skin, the wrong device can also heat the skin's own pigment, hence the guideline's push toward longer-wavelength lasers. It also warns Mediterranean and Middle Eastern women with facial hair that laser can occasionally trigger more growth nearby, called paradoxical hypertrichosis.
At my consultation I asked one question first: which device do you use on skin like mine? The answer was a diode with a cooling tip, and my grey hairs were sent to electrolysis.
What this means practically: Before booking, ask which laser the clinic uses for your skin tone, and plan electrolysis for any grey or white hairs. Expect a course of several sessions, not one. 🔵 Expert consensus (clinical agreement, limited RCT) |
Eflornithine, Spironolactone and HRT: Prescription Options for Facial Hair
Here I had to reset my expectations. Prescriptions can slow perimenopause facial hair, but none is a cure, and most trials were in younger women.
According to the US prescribing information for eflornithine 13.9% cream, two randomised trials in 594 women found that 32% of users reached marked improvement or better at 24 weeks, compared with 8% on a dummy cream. Improvement showed up from 4 to 8 weeks, and hair returned close to its starting level within about 8 weeks of stopping. The cream slows growth; it doesn't remove hair, so you keep plucking or threading alongside it.
Spironolactone is an older diuretic tablet, long used for blood pressure, that also blocks androgen effects. A 2015 Cochrane review of hirsutism treatments by van Zuuren (157 studies, 10,550 women averaging 25 years old) found spironolactone 100 mg a day lowered hirsutism scores about 7.7 points more than placebo, on low-quality evidence.
If you use testosterone, often prescribed for low libido in perimenopause, a 2019 meta-analysis in The Lancet Diabetes & Endocrinology by Islam, pooling 36 trials and 8,480 participants, linked it with more reports of acne and hair growth.
As for estrogen-based HRT in perimenopause, I couldn't find a single trial testing it for facial hair, so I won't pretend one exists.
I haven't tried either prescription yet. Eflornithine is on my list to discuss, mostly because it stops working when you stop, and I want to know whether I'd be signing up for life.
What this means practically: Give any prescription at least six months before judging it, as the Endocrine Society guideline advises, and ask your pharmacist whether eflornithine is available where you live. 🟢 Strong evidence (RCT/meta-analysis) |
Frequently Asked Questions About Perimenopause Facial Hair: Why Chin Hairs Appear and What Works
Is it normal to get chin hair during perimenopause?
Yes. A few coarse chin or upper-lip hairs are common in perimenopause because falling estrogen lowers SHBG and leaves more testosterone free. Slow change is typical; fast change, or hair with a deepening voice or receding hairline, needs a doctor.
Why is my facial hair getting thicker while my head hair thins?
Facial and scalp follicles respond to androgens in opposite ways, a paradox described by Inui and Itami in Experimental Dermatology in 2013. The same free testosterone that thickens chin hair can shrink scalp follicles, so both changes often appear together.
Does HRT help with facial hair in perimenopause?
No trial has tested estrogen HRT as a treatment for perimenopausal facial hair, so nobody knows yet. Testosterone therapy goes the other way: a 2019 meta-analysis of 36 trials linked it with more acne and hair growth. If new hairs appear after starting testosterone, tell your prescriber.
Is it better to pluck or shave chin hairs?
Neither is medically better for a few stray hairs, so choose the method you'll keep up. Plucking and threading remove the whole hair, so it takes longer to return; shaving is faster but needs repeating. If plucked hairs grow back under the skin or leave dark marks, try threading or a professional method.
Does laser hair removal work on grey or white chin hairs?
Usually not, because laser targets the pigment in the hair and grey or white hairs have very little. The Endocrine Society's 2018 guideline suggests electrolysis for white or blonde hair instead. Laser remains an option for dark hairs, with Nd:YAG or diode devices suggested for darker skin.
When should I see a doctor about facial hair in perimenopause?
See a doctor promptly if facial hair appears over months rather than years, spreads well beyond the chin and lip, or comes with a deeper voice, a receding hairline or an enlarged clitoris. These signs can point to a hormone-producing tumour or another condition that needs testing.
The Bottom Line
Perimenopause Facial Hair: Why Chin Hairs Appear and What Works - is mostly a ratio problem: estrogen and SHBG fall, testosterone stays put, and the follicles on your chin and upper lip notice. That makes it common, explainable and manageable, from threading and laser to prescription eflornithine, as long as the method matches your hair colour and skin tone.
The exception is speed: fast-appearing hair with voice, hairline or genital changes needs a doctor, not tweezers. Here at Vibrance Way, I'd rather you understood the mechanism than spend another week checking your chin at red lights.
What I want you to take from this: count, don't catastrophise. A notebook and one honest appointment did more for my peace of mind than any mirror ever has.
From the Vibrance Way Perimenopause Series
References
Burger HG, Dudley EC, Cui J, Dennerstein L, Hopper JL. A prospective longitudinal study of serum testosterone, dehydroepiandrosterone sulfate, and sex hormone-binding globulin levels through the menopause transition. Journal of Clinical Endocrinology & Metabolism. 2000.
Hirschberg AL. Approach to investigation of hyperandrogenism in a postmenopausal woman. Journal of Clinical Endocrinology & Metabolism. 2023.
Luque-Ramírez M, Nattero-Chávez L, et al. Postmenopausal onset of androgen excess: a diagnostic and therapeutic algorithm based on extensive clinical experience. Journal of Endocrinological Investigation. 2024.
Inui S, Itami S. Androgen actions on the human hair follicle: perspectives. Experimental Dermatology. 2013.
Martin KA, Anderson RR, Chang RJ, et al. Evaluation and treatment of hirsutism in premenopausal women: an Endocrine Society clinical practice guideline. Journal of Clinical Endocrinology & Metabolism. 2018.
Lipton MG, Sherr L, Elford J, Rustin MHA, Clayton WJ. Women living with facial hair: the psychological and behavioral burden. Journal of Psychosomatic Research. 2006.
Hamzavi I, Tan E, Shapiro J, Lui H. A randomized bilateral vehicle-controlled study of eflornithine cream combined with laser treatment versus laser treatment alone for facial hirsutism in women. Journal of the American Academy of Dermatology. 2007.
Allergan/AbbVie. VANIQA (eflornithine hydrochloride) cream 13.9%: full prescribing information. US FDA-approved labeling. 2018.
van Zuuren EJ, Fedorowicz Z, Carter B, Pandis N. Interventions for hirsutism (excluding laser and photoepilation therapy alone). Cochrane Database of Systematic Reviews. 2015.
Islam RM, Bell RJ, Green S, Page MJ, Davis SR. Safety and efficacy of testosterone for women: a systematic review and meta-analysis of randomised controlled trial data. The Lancet Diabetes & Endocrinology. 2019.
The mirror notices first. Most perimenopause chin hairs come from a hormone ratio shift, not rising testosterone. | Vibrance Way |
Comments