PCOS acne, facial hair and hair loss: what drives them and what helps.

Androgens — testosterone and related hormones — act on hair follicles and oil glands. In PCOS, higher circulating androgens (often amplified by low SHBG and insulin resistance) and individual follicle sensitivity produce three classic effects: more coarse body hair, more oil and acne, and thinning of scalp hair. The severity doesn’t always match blood levels, which is why treatment is guided by symptoms.

Hirsutism (facial and body hair)

Hirsutism is coarse, dark hair growth in a male-type pattern — chin, upper lip, jawline, chest, around the nipples, lower abdomen, back or inner thighs. Clinicians often use the modified Ferriman–Gallwey score to grade it, though thresholds vary by ethnicity. The American College of Obstetricians and Gynecologists notes PCOS is its most common cause.

Treatments

• Combined oral contraceptive pill (first line). Raises SHBG and lowers ovarian androgen production. The Endocrine Society hirsutism guideline suggests the pill for most women, adding an anti-androgen after six months if the response isn’t enough.
• Anti-androgens such as spironolactone block androgen effects on the follicle. They can cause birth defects, so they’re used with reliable contraception and are never taken in pregnancy.
• Laser hair reduction or electrolysis. Laser works best on dark hair over lighter skin, with modern devices suitable for darker skin tones; electrolysis treats all hair colours. Combining with medical therapy reduces regrowth.
• Eflornithine cream slows facial hair growth while used.
• Shaving, waxing, threading, plucking. Safe and effective short term. Shaving doesn’t make hair grow back thicker.

The Endocrine Society guideline suggests against using insulin-lowering drugs specifically to treat hirsutism. Spearmint tea lowered testosterone in a small 30-day trial but didn’t change objective hair scores.

PCOS acne

PCOS-related acne is often deeper, more inflamed and concentrated along the jawline, chin and neck, persisting well beyond the teenage years.

• Standard acne treatments — topical retinoids, benzoyl peroxide, azelaic acid, and topical or oral antibiotics — still work and are the foundation.
• Combined pill — improves androgen-driven acne.
• Spironolactone — commonly used by dermatologists for hormonal acne in adults, with contraception.
• Isotretinoin — for severe or scarring acne under dermatologist supervision; strict pregnancy prevention is required.
• Lifestyle — evidence links high-glycaemic diets and, less consistently, skim milk with acne in the general population. A lower-GI eating pattern is a reasonable, low-risk support.

Scalp hair thinning (female-pattern hair loss)

Androgens can shrink scalp follicles, usually causing diffuse thinning at the crown or a widening part rather than bald patches. It’s often the least-discussed PCOS symptom and one of the most distressing.

• Topical minoxidil is the best-established treatment for female-pattern hair loss; low-dose oral minoxidil is also prescribed by some dermatologists.
• Anti-androgens and the combined pill may help slow progression.
• Rule out other causes: thyroid disease, iron deficiency (common with heavy periods), and recent illness or stress (telogen effluvium) are all treatable.

Acanthosis nigricans

Dark, velvety patches on the neck, armpits or groin are a skin sign of insulin resistance rather than androgens. They often fade as insulin sensitivity improves. See insulin resistance and PCOS.

Timelines and expectations

The emotional side

Hirsutism and acne are linked with lower quality of life and higher rates of anxiety and depression in PCOS. You are not being vain for wanting treatment — the guideline treats these as legitimate health concerns. If they’re affecting your mood, say so; support is part of care.

Not sure your symptoms fit PCOS? Try the free symptom quiz or read PCOS symptoms.

A simple skincare routine for PCOS acne

1. Gentle cleanser morning and evening. Harsh scrubs and frequent washing can worsen inflammation.
2. Active treatment as recommended: a topical retinoid at night, and/or benzoyl peroxide or azelaic acid. Start every other night to limit irritation.
3. Non-comedogenic moisturiser, especially alongside retinoids.
4. Sunscreen daily, because retinoids increase sun sensitivity and sun can darken post-acne marks — particularly on darker skin tones.

Give a routine about 12 weeks before judging it, and see a dermatologist for deep, painful or scarring acne.

Laser hair removal and skin tone

Laser works by targeting pigment in the hair. Older devices worked best on dark hair over light skin, but long-wavelength lasers (such as Nd:YAG) are used safely on darker skin tones when operated by experienced practitioners. Blonde, grey or red hair responds poorly to laser; electrolysis is the alternative. Several sessions are usually needed, and hormonal treatment helps prevent new growth.

Ingrown hairs and hyperpigmentation

Frequent shaving or plucking of coarse hair can cause ingrown hairs and dark marks, especially on the chin and neck. Shaving with the grain, using a sharp single blade, exfoliating gently and avoiding plucking can help. Persistent bumps or dark patches are worth discussing with a dermatologist, as treatment options exist.