Adult Female Acne: A Doctor Explains (Singapore)

06 Jan Adult Female Acne: A Doctor Explains (Singapore)

Adult Female Acne: A Doctor Explains (Singapore)

Adult female acne is often misunderstood by patients and sometimes, by the people around them. If you are a woman in your 20s, 30s, 40s or beyond dealing with acne, this is not a case of “dirty skin” or “bad skin” but really, biology. Acne used to be considered a skin disease exclusively affecting adolescents, but acne vulgaris is now increasingly observed in adult females, including post-menopause¹. According to studies, adult female acne (AFA) is a common chronic inflammatory that affects 12 to 41% of adult females; and approximately 41% patients with female adult acne patients not having experienced acne during their adolescence^2-4.

Adult female acne is also a common dermatological condition among my patients in Singapore. If you’re struggling with persistent pimples and acne in your adulthood, this doctor’s guide is for you to understand why adult female acne and what you can do to manage your pimples well.

Types of acne: comedones (blackheads and whiteheads), papules, pustules, nodules and cysts.

What is adult female acne?

Adult female refers to acne that persists from adolescence into adulthood, or begins for the first time after the age of 25⁴. Adult female acne has a clinical and psychosocial profile distinct from teenage and male acne^5-7.

The pathogenesis of acne involves follicular hyperkeratinisation, increased sebum or oil production, colonisation by C. acne bacteria and inflammation.

Why does acne occur?

Acne biology, explained simply develops because of four interconnecting factors in the skin^5,8,9:

1) Abnormal pore blockage
Skin cells inside the pore do not shed normally and instead clump together, forming micro-comedones.

2) Sebum production and composition
Sebum production increases, creating an environment that favours inflammation.

3) C. acnes imbalance
Cutibacterium acnes, as part of the normal skin microbiome, proliferates and activates the immune system.

4) Inflammation
Chronic inflammation causes swelling, and worsening of acne.

Adult female acne vs acne in teenagers and males

How is adult female acne different from other forms of acne?

Adult female acne is often inflammatory (papules, pustules, nodules) with tender red bumps along the lower face and may also form on the cheeks and neck^5,6,10. Compared to teenage acne, adult female acne tends to have fewer acneform lesions but are more persistent^5,6,10. Adult female acne also has a higher risk of postinflammatory hyperpigmentation and psychological distress^10,12,13.

Teenage acne tends to show as a combination of comedones (blackheads and whiteheads) with inflammatory lesions along the forehead, nose, cheeks, chest and back¹⁴. In males, acne in males is often more severe and widespread with higher involvement of back, chest and shoulders^5,6,13.

Why does adult acne occur in women?

Although the pathogenesis of adult female acne is similar to other forms of acne; the exact causes of these are still incompletely understood, with the multiple factors (e.g. UV exposure, stress, excessive skin washing) affecting the pilosebaceous unit (oil glands) being postulated¹⁰.

In adult female acne, hormones play a crucial role. Androgens are a category of hormones that drive acne by stimulating sebaceous glands to produce excess oil which clogs pores and causes inflammation, leading to pimples¹¹. Adult women with acne have an increased sensitivity of their sebaceous gland to androgen; with a higher conversion of androgens in the skin due to hyperactivity and abnormal activity of enzymes related to the metabolism of androgenic hormones¹¹. In menopausal women, the decline of estrogen hormones and the relative increase in androgen hormones can trigger acne¹¹.

A compromised skin barrier function has also been incriminated in the development of acne^15,16. The increased transepidermal water loss as a result of a damaged skin barrier may be responsible for the onset of the inflammatory cascade in acne^15,16.

Adult female acne and the Singapore (or Southeast Asian) connection

The hot and humid weather in Singapore increases the risk and severity of adult female acne by promoting higher sebum production, increased sweat, and greater occlusion of the pilosebaceous unit¹⁷. For us in Singapore and Southeast Asia, the phenomenon of “tropical acne” is characterized by more severe, inflammatory lesions in our persistently hot, humid climates¹⁷.

Sweating and humidity also increase the occlusive effects from cosmetic products and clothing, which can exacerbate acne severity and persistence¹⁷.

Treating adult female acne: a holistic approach

Treating adult female acne: Evidence based strategies and treatments in Singapore

The good news is, treating adult female acne doesn’t involve medications alone. Lifestyle interventions that are evidence based for adult female acne include skincare, which has been explained in detail in Skincare Ingredients for Acne & Acne Prone Skin  and Cycle Sync Skincare for Menstrual Acne. The American Academy of Dermatology recommends combining skincare with medical treatments to improve tolerance, especially in climates like Singapore where heat and humidity can exacerbate acne¹⁸.

For some individuals, diet affects severity. All the details about diary and other foods to avoid for pimples in Acne and Diet: Foods to Avoid for Less Pimples.

Medical treatment for adult female acne: what actually works?

If your acne persists despite your best efforts with skincare and other lifestyle interventions, consider consulting with your doctor for medical treatments for acne. Acne in adults, and in particular, Asians, have a higher tendency to develop post-acne dark marks and scars^13,19. If you also have:

• Deep, painful acne
• Scarring and post acne dark marks

Adult acne is a common condition among my patients in Singapore; and may require supervised medical treatment and long-term maintenance.

Medical treatments for adult female acne can consist of:

• Topical retinoids, antibacterial/ antibiotics, anti-inflammatory agents
• Oral antibiotics, hormonal therapy
• Oral isotretinoin

In-clinic treatments such as lasers, chemical peel and LED light therapy can supplement medical treatment; to improve acne severity and complications. The science and evidence for these treatments have been covered in depth in:
The Truth about Chemical Peels
10 Things to Know Before Getting Lasers
LED Light Therapy Explained

Doctor’s takeaway on adult female acne in Singapore

Adult acne in women is not a problem with hygiene but a common, and treatable condition that requires strategic treatments of the pathogenesis of acne. Acne is driven by oil gland activity, clogged follicles, microbiome shifts, and inflammation, often with a hormonal component. Singapore’s climate also adds to acne’s severity and complexities in treatment. Adult acne, if left untreated, can lead to persistent hyperpigmentation, scarring, and significant psychological impact.

In my practice, the most effective and reliable results in my patients come from a combination of evidence based actives and barrier repair skincare, and escalation to medications and treatments when needed and tailored to the individual. Acne is treatable—and early, informed care makes a meaningful difference.

References:

1. Unveiling the Nuances of Adult Female Acne: A Comprehensive Exploration of Epidemiology, Treatment Modalities, Dermocosmetics, and the Menopausal Influence. Rocha et al. Int J Womens Health. 2024 Apr 18;16:663–678.
2. Acne vulgaris in women: prevalence across the life span. Perkins et al. J Women’s Health. 2012;21:223–230.
3. An epidemiological study of acne in female adults: results of a survey conducted in France. Poli et al. J Eur Acad Dermatol Venereol. 2001;15:541–545.
4. Adult acne versus adolescent acne: a narrative review with a focus on epidemiology to treatment. Kutlu et al. An Bras Dermatol. 2023;98:75–83.
5. Adult Female Acne: A New Paradigm. Dréno et al. JEADV. 2013.
6. Large-Scale International Study Enhances Understanding of an Emerging Acne Population: Adult Females. Drénoe t al. JEADV. 2015. Drénoe t al.
7. Acne Accounts for an Almost 2.5-Fold Higher Proportion of Dermatology Visits Among Adult Females Compared to Adult Males in the United States: A Study of the National Ambulatory Medical Care Survey From 2002-2016. Chang et al. PloS One. 2023.
8. Society for Endocrinology Clinical Practice Guideline for the Evaluation of Androgen Excess in Women. Elhassan et al. Clinical Endocrinology. 2025.
9. Management of Acne Vulgaris: A Review. Eichenfield et al. The Journal of the American Medical Association. 2021.
10. Postadolescent Acne in Females. Holzmann and Shakery. Skin Pharmacology and Physiology. 2013.
11. Adult female acne: a guide to clinical practice. Bagatin et al. An Bras Dermatol. 2019;94:62–75.
12. Treatment of Adult Female Acne: A New Challenge. Dréno. JEADV. 2015.
13. Female Type of Adult Acne: Physiological and Psychological Considerations and Management. Dreno et al. Journal Der Deutschen Dermatologischen Gesellschaft. 2018.
14. Epidemiology of Post-Adolescence Acne and Adolescence Acne in Singapore: A 10-Year Retrospective and Comparative Study. Han et al. EADV. 2016.
15. Status report from the American Acne & Rosacea Society on medical management of acne in adult women, part 2: topical therapies. Del Rosso et al. Cutis. 2015;96:321–325
16. Skin barrier and microbiome in acne. Rocha and Bagatin. Arch Dermatol Res. 2018;310:181–185.
17. Acne Vulgaris. Williams et al. Lancet. 2012.
18. NECASA II: A Practical Algorithm Integrating Skincare in the Management of Adult Female Acne in the Nordic European Countries. Bjerring et al. J Drugs Dermatol. 2025 Nov 1;24(11):1094-1101.
19. A review of the topical management of acne and its associated sequelae in the Asia-Pacific region with a spotlight on trifaroten. See et al. Int J Dermatol. 2024 Jun;63(6):704-713.