Adult Acne: Why It Happens After Your Teens and the Treatments That Work

Written by Naurah Gaspard, DNP, FNP-C, FNP-BC · Medically reviewed by Cherlie Joseph, MSN, FNP-BC · Updated November 2026

Acne in adults is common, especially in women, and often shows up as tender bumps along the jawline, chin and neck. Hormone shifts, stress, PCOS, some medicines and pore-clogging products are frequent causes. Most adult acne improves within 2 to 3 months with a consistent routine of a retinoid and benzoyl peroxide, and hormonal options like spironolactone or birth control pills help many women.

What causes acne in adults

Acne forms when oil and dead skin cells clog pores, bacteria grow and the area becomes inflamed. In adults, a few things tip the balance:

• Hormones. Breakouts before periods, after stopping birth control, during pregnancy, postpartum and in perimenopause are common.
• PCOS. Acne with irregular periods, extra facial or body hair or thinning scalp hair is worth checking for PCOS. See PCOS symptoms.
• Stress, which raises hormones that boost oil production.
• Products. Heavy moisturizers, oily sunscreens, hair oils and pomades can clog pores along the hairline and forehead.
• Friction and sweat. Masks, helmets, phone screens and workout gear in Florida heat.
• Medicines, such as steroids, lithium, some seizure medicines and testosterone.

Over-the-counter treatments that work

The American Academy of Dermatology's 2024 acne guideline gives its strongest recommendations to several ingredients you can buy without a prescription:

• Adapalene 0.1% gel (Differin): a retinoid that unclogs pores and prevents new acne. Use a pea-sized amount on the whole area at night, not just on spots.
• Benzoyl peroxide washes or gels (2.5% to 5% is enough for most people): kills acne bacteria and prevents antibiotic resistance. It can bleach towels and pillowcases.
• Salicylic acid: helps with blackheads and whiteheads.
• Azelaic acid: helps acne and the dark spots it leaves behind, which is especially useful for brown and Black skin.

Give any routine 8 to 12 weeks. Acne can look a bit worse in the first few weeks of a retinoid before it gets better.

Prescription options compared

Treatment	Best for	Good to know
Tretinoin, tazarotene, trifarotene	Clogged pores and inflamed acne; also helps fine lines	Dryness at first; avoid in pregnancy
Topical antibiotics (clindamycin)	Red, inflamed bumps	Always paired with benzoyl peroxide
Clascoterone cream (Winlevi)	Hormonal acne in men and women	Blocks hormones in the skin only
Oral antibiotics (doxycycline, minocycline)	Moderate to severe inflamed acne	Short courses, usually 3 to 4 months, with topicals; sun sensitivity
Spironolactone	Women with jawline or hormonal acne	Off-label but widely used; not for pregnancy
Combined birth control pills	Women who also want contraception	Several are FDA-approved for acne
Isotretinoin	Severe, scarring or stubborn acne	Prescribed through the iPLEDGE program, usually by a dermatologist

In February 2026, FDA approved changes to iPLEDGE that ease some isotretinoin rules, including allowing at-home pregnancy tests during treatment in some cases and removing the 19-day lockout after a missed pickup window. Strict pregnancy prevention still applies, because isotretinoin causes severe birth defects.

A simple routine for adult skin

• Morning: gentle cleanser or benzoyl peroxide wash, light oil-free moisturizer, broad-spectrum sunscreen labeled "non-comedogenic."
• Night: gentle cleanser, retinoid on dry skin, then moisturizer.
• Start the retinoid every other night for 2 weeks if your skin is sensitive.
• Do not scrub, pick or pop; it causes dark marks and scars.
• Wash pillowcases weekly and clean your phone screen.
• Shower and wash your face after sweaty Florida workouts.

When it might not be acne

• Rosacea: redness and flushing in the center of the face with small bumps, but no blackheads. See our rosacea guide.
• Perioral dermatitis: tiny bumps around the mouth and nose, often after using steroid creams.
• Folliculitis: itchy, uniform bumps on the chest and back, sometimes from yeast in hot, humid weather.

Frequently asked questions

Why am I getting acne in my 30s or 40s?

Hormone changes, stress, PCOS, perimenopause and pore-clogging products are the most common reasons. New, sudden acne with other signs like extra hair growth or irregular periods should be checked.

Does spironolactone work for acne?

Many women see fewer breakouts along the jaw and chin within about 3 months. It is used off-label for acne, is not safe in pregnancy and needs a provider's prescription.

How long does it take for acne treatment to work?

Most treatments take 8 to 12 weeks to show clear results. Stick with your routine, and check in with your provider if you are not improving by then.

Sources

• American Academy of Dermatology: Acne
• Dermatology Times: FDA updates iPLEDGE REMS, February 2026
• FDA: iPLEDGE REMS

Keep reading

• PCOS symptoms
• Birth control options
• Rosacea
• Browse all conditions and treatments A to Z

This article is for general education and is not a substitute for medical advice. Treatment, including any prescription, is decided by a licensed provider after reviewing your health history. OurTopClinic is not for emergencies; if you have a medical emergency, call 911. OurTopClinic serves adults located in Florida, New Mexico, Oregon and Washington. Learn more at ourtopclinic.com.