Medically reviewed by Dr. Kevin Chua, Medical Director Last updated: April 2026
Medically reviewed by Dr. Kevin Chua, Medical Director Last updated: April 2026
About the reviewer Dr. Kevin Chua — Medical Director, noah™. Dr. Chua oversees clinical governance and ensures all prescriptions meet Singapore medical standards.
Male pattern hair loss (androgenetic alopecia, or AGA) affects up to 73% of men over a lifetime. It is the most common form of hair loss in men, driven by a combination of genetics and the hormone dihydrotestosterone (DHT). The good news: clinically proven treatments — finasteride and minoxidil — can slow, stop, and in many cases partially reverse hair loss when started early. This guide covers everything Singaporean men need to know.
Androgenetic alopecia (AGA) — commonly known as male pattern baldness — is a progressive condition characterised by the gradual thinning and miniaturisation of hair follicles in a predictable pattern. It typically begins with a receding hairline at the temples and thinning at the crown, eventually leading to partial or complete baldness in these areas1.
AGA is not a disease in the traditional sense — it is a genetically programmed response of hair follicles to androgens (male hormones). However, it can have significant psychological impact, affecting self-confidence, social interactions, and quality of life.
Understanding the biology of AGA matters because it explains why specific treatments work and why early intervention produces better results.
Male pattern hair loss is extremely common. International studies estimate that AGA affects approximately 30% of men by age 30, 50% by age 50, and up to 73% over a lifetime1. Asian men tend to develop AGA slightly later and with somewhat less severity than Caucasian men, but it remains highly prevalent.
In Singapore's multiracial context — Chinese, Malay, Indian, and other ethnic groups — prevalence patterns vary somewhat, but AGA affects men across all ethnic backgrounds. The condition tends to become noticeable in the late 20s to early 30s and progresses with age.
Despite its prevalence, many men delay treatment for years — often until significant hair loss has occurred. This is unfortunate because treatment is most effective when started early, while follicles are still active.
AGA results from the interplay of genetics, hormones, and time. Understanding the mechanism helps explain treatment options and their limitations.
The key player in AGA is dihydrotestosterone (DHT), a potent androgen derived from testosterone by the enzyme 5-alpha reductase. In genetically susceptible hair follicles, DHT binds to androgen receptors and triggers a process called follicular miniaturisation1:
AGA is polygenic — influenced by multiple genes inherited from both parents. The most significant genetic factor is the androgen receptor gene on the X chromosome (inherited from the mother), but paternal genes also contribute1.
Common misconception: "If my father has a full head of hair, I won't go bald." This is false. You can inherit AGA susceptibility from either or both parents.
Follicles on the top and front of the scalp express more androgen receptors than those on the sides and back (the "permanent zone"). This is why AGA creates the characteristic pattern of loss and why hair transplant donor hair is taken from the sides and back.
The Hamilton-Norwood scale is the standard classification system for male pattern hair loss. It ranges from Stage I (minimal or no hair loss) to Stage VII (extensive baldness).
Recognising your current stage helps guide treatment decisions and set realistic expectations.
| Stage | Description | Treatment Outlook |
|---|---|---|
| I–II | Minimal recession at temples | Excellent — early treatment can maintain full coverage |
| III | Noticeable recession or crown thinning | Good — treatment can slow/stop progression, partial regrowth possible |
| IV | Significant recession and crown loss | Moderate — treatment slows progression; regrowth more limited |
| V–VI | Extensive loss; thinning bridge between areas | Limited — may slow progression; transplant may be considered |
| VII | Near-complete baldness on top | Medical treatment has limited benefit; transplant options limited |
The message: Earlier = better. If you're noticing thinning, now is the time to act.
Two treatments have robust clinical evidence supporting their efficacy for AGA. No other treatment comes close to the evidence base of finasteride and minoxidil.
Finasteride is an oral medication that blocks 5-alpha reductase type II, the enzyme that converts testosterone to DHT. By reducing scalp DHT levels by approximately 70%, finasteride slows or stops the miniaturisation process2.
Key evidence: - A pivotal 2-year RCT demonstrated that finasteride 1 mg/day increased hair count by a mean of 107 hairs per cm² in the vertex scalp area, while placebo-treated men lost 97 hairs per cm²2 - 5-year data showed sustained efficacy, with continued improvement in hair count and clinical appearance3 - Treatment is most effective in maintaining existing hair; regrowth is a bonus
Dosing: 1 mg once daily
Side effects: - Sexual side effects (reduced libido, erectile dysfunction) reported in 1.3–1.8% of men in clinical trials — similar to placebo rates2 - Most side effects resolve upon discontinuation - The risk-benefit ratio is overwhelmingly favourable for the vast majority of men
→ Read more: Finasteride for Hair Loss in Singapore (SG-N-AGA-01)
Minoxidil is a topical solution or foam applied directly to the scalp. Originally developed as an oral antihypertensive, it was found to promote hair growth as a side effect. Topical minoxidil stimulates hair follicles through mechanisms including increased blood flow, potassium channel opening, and upregulation of growth factors4.
Key evidence: - Clinical trials demonstrate that 5% minoxidil solution produces superior hair regrowth compared to 2% solution and placebo4 - Results typically visible after 3–6 months of consistent use - Works best for vertex (crown) thinning; less effective for frontal recession
Dosing: 1 ml of 5% solution or half-cap of 5% foam, applied to affected areas twice daily (or once daily for some formulations)
Side effects: - Scalp irritation (more common with solution than foam) - Initial "shedding" in the first 2–4 weeks (a sign the treatment is working — old hairs are replaced by new growth) - Unwanted facial hair (if applied carelessly or transferred by pillows)
→ Read more: Minoxidil for Hair Loss in Singapore (SG-N-AGA-02)
Using finasteride and minoxidil together produces better results than either treatment alone. Finasteride addresses the hormonal cause (reducing DHT), while minoxidil directly stimulates follicular activity. This combination is considered the gold standard of medical hair loss treatment5.
→ Read more: Finasteride + Minoxidil Combination Guide (SG-N-AGA-03)
Hair loss treatment lends itself well to telehealth — diagnosis is largely visual and history-based, and treatment involves standardised medications. noah™ provides a convenient, discreet pathway to evidence-based treatment.
Hair loss treatment is a long-term investment — results require consistent use over months and years. Understanding the cost landscape helps you plan accordingly.
| Treatment | Clinic/Pharmacy | noah™ |
|---|---|---|
| Finasteride 1 mg (30 tablets) | S$40–90 | From S$35 |
| Minoxidil 5% (1 month supply) | S$30–60 | From S$25 |
| Combination (both) | S$70–150 | From S$55 |
Prices are approximate. Updated April 2026.
Singapore has numerous hair loss treatment centres that offer proprietary treatments, often at premium prices (S$200–500+ per month). Many of these combine basic medications (finasteride and minoxidil) with unproven extras (laser therapy, proprietary serums, "scalp treatments").
Our advice: Start with the proven treatments. If finasteride and minoxidil are working, expensive add-ons are unnecessary. If they're not enough, consult a dermatologist about evidence-based alternatives.
Hair loss treatment is generally not covered by MediSave or private health insurance, as it is considered cosmetic.
Hair transplantation involves moving DHT-resistant follicles from the sides/back of the scalp to thinning areas. It can produce excellent, natural-looking results — but it's not a first-line treatment and comes with important caveats.
→ Read more: Hair Transplant Guide for Singapore Men (SG-N-AGA-06)
The hair loss industry is rife with misinformation. Let's address the most common myths honestly.
False. Hats do not cause AGA. Hair loss is driven by genetics and hormones, not external pressure or heat.
False. Normal shampooing does not cause hair loss. Hairs that fall out during washing were already in the telogen (shedding) phase and would have fallen out anyway.
Partially true but misleading. The androgen receptor gene is on the X chromosome (from your mother), but AGA is polygenic — genes from both parents contribute1.
Not proven. Biotin, saw palmetto, and other supplements have minimal to no clinical evidence for AGA treatment. They may address deficiency-related hair loss (rare in well-nourished Singaporeans) but do not treat AGA.
False. Maintaining existing hair IS a success. Without treatment, AGA is progressive — keeping what you have is a significant clinical achievement.
AGA follows a predictable pattern (receding temples, thinning crown). Other types of hair loss — alopecia areata (patchy), telogen effluvium (diffuse shedding after stress/illness), or scarring alopecia — have different presentations. If your hair loss doesn't follow the typical AGA pattern, consult a doctor for proper diagnosis.
Finasteride: Slowing of hair loss may be noticeable within 3 months; visible improvement in density typically takes 6–12 months. Minoxidil: New growth usually visible at 3–6 months. Full results for both treatments are best assessed at 12 months.
Hair loss resumes. The benefits of finasteride and minoxidil require continuous use. Stopping treatment typically results in return to the pre-treatment trajectory within 6–12 months.
Large clinical trials and decades of real-world use support finasteride's safety profile. Sexual side effects are reported by a small minority of users (1–2%) and typically resolve upon discontinuation2. Discuss any concerns with your doctor.
Finasteride is not approved for women and must not be used by women who are or may become pregnant (risk of birth defects in male foetuses). Minoxidil is available for women at 2% concentration. For women's hair loss treatment, see zoey™.
Low-level laser therapy (LLLT) has some clinical evidence suggesting modest benefit, but the effect size is small compared to finasteride and minoxidil. It may be a reasonable adjunct but should not replace proven pharmacological treatment.
Treatment can still be beneficial at any age — finasteride and minoxidil can slow progression and maintain remaining hair. However, regrowth potential is greatest when treatment starts earlier. "The best time to start was 5 years ago. The second best time is now."
Yes. Photos are an important part of the assessment — they allow the doctor to evaluate your hair loss pattern and track progress over time. noah™ provides guidance on how to take effective photos.
Stress can cause telogen effluvium — a temporary, diffuse shedding that occurs 2–3 months after a stressful event. This is different from AGA and usually resolves on its own. However, stress does not cause AGA, which is genetically and hormonally driven.
Yes. All medications dispensed by noah™ are registered with the Health Sciences Authority (HSA) and sourced through licensed pharmacy partners.
This article is for informational purposes only and does not constitute medical advice. Hair loss medications are prescription-only in Singapore. Always consult a licensed doctor before starting any treatment. noah™ consultations are conducted by SMC-registered doctors in accordance with MOH telemedicine guidelines.
© 2026 noah™ — A brand of Ordinary Folk Pte. Ltd.
Sinclair R. Male pattern androgenetic alopecia. BMJ. 1998;317(7162):865-869. PMID: 9748188 ↩↩↩↩↩
Kaufman KD, Olsen EA, Whiting D, et al. Finasteride in the treatment of men with androgenetic alopecia. J Am Acad Dermatol. 1998;39(4 Pt 1):578-589. PMID: 9777765 ↩↩↩↩
Rossi A, Cantisani C, Melis L, Iorio A, Scali E, Calvieri S. Minoxidil use in dermatology, side effects and recent patents. Recent Pat Inflamm Allergy Drug Discov. 2012;6(2):130-136. PMID: 22409453 ↩
Olsen EA, Dunlap FE, Funicella T, et al. A randomized clinical trial of 5% topical minoxidil versus 2% topical minoxidil and placebo in the treatment of androgenetic alopecia in men. J Am Acad Dermatol. 2002;47(3):377-385. PMID: 12196747 ↩↩
Hu R, Xu F, Sheng Y, et al. Combined treatment with oral finasteride and topical minoxidil in male androgenetic alopecia. Indian J Dermatol Venereol Leprol. 2015;81(3):268-274. PMID: 25920173 ↩
Price VH. Treatment of hair loss. N Engl J Med. 1999;341(13):964-973. PMID: 10498493 ↩


Articles featured on Noah are for informational purposes only and should not be constituted as medical advice, diagnosis or treatment. If you have any medical questions or concerns, please talk to your healthcare provider.