Female pattern hair loss usually shows as diffuse thinning across the top of the scalp, often noticed first as a widening parting, with the frontal hairline generally preserved. That is a different pattern from the receding hairline and crown thinning typical in men, and it is one reason the male-oriented information most people find first is a poor fit.
Rule Out Causes First
This step matters much more in women, because reversible causes are more common:
- Iron deficiency, with or without anaemia
- Thyroid disorders, both under- and overactive
- Telogen effluvium — diffuse shedding a few months after childbirth, illness, surgery, severe stress or rapid weight loss
- PCOS and other causes of raised androgens
- Medications, including some contraceptives
- Vitamin D deficiency
A GP can check most of these with blood tests. Treating a deficiency is more effective and much cheaper than treating its symptom, and if the cause is telogen effluvium the hair often recovers without any treatment at all.
Rapid weight loss deserves specific mention: shedding a few months after significant weight loss — including on GLP-1 medication — is a recognised telogen effluvium pattern, and is usually temporary.
What Is Licensed in the UK
Minoxidil
Topical minoxidil is the mainstay and is available over the counter. Women's products are commonly 2%; 5% is used under guidance, with a higher chance of unwanted facial hair growth. As in men, it needs several months before it can be judged, and an early shedding phase is normal.
What is not licensed for women
Finasteride and dutasteride are not licensed for female pattern hair loss in the UK. They are sometimes prescribed off-label by specialists, particularly after the menopause, but this is a specialist decision and both carry serious risks in pregnancy. They should not be taken by women who could become pregnant.
Other approaches
Spironolactone is used off-label for androgen-related hair loss in some women, again as a specialist decision. Some combined oral contraceptives can help where raised androgens are part of the picture. Both are conversations with a doctor who knows your history rather than an online form.
Why a Specialist Referral Is Reasonable
Because the differential is wider in women, and because the licensed options are narrower, this is a case where a dermatology opinion earns its place. Scarring alopecias in particular need to be identified early, since damage to the follicle is permanent — and they can be mistaken for pattern loss at first glance.
Practical Things That Help
- Treat existing hair gently: avoid tight styles that pull at the roots, and limit heat and chemical processing
- Address the underlying cause if there is one, before adding a treatment on top
- Take photographs in consistent lighting — progress is slow and unreliable to judge from memory
- Do not assume supplements will help unless a deficiency has been demonstrated
Where Cost Comes In
Minoxidil bought over the counter is the affordable end, and own-brand products contain the same active ingredient as branded ones. Anything prescribed off-label is a private cost and worth comparing across providers. But the first spend that pays for itself is a set of blood tests — because the most expensive treatment is the one aimed at the wrong cause.