Hair loss in women: what to do

Hair loss in women is not always reversible. There are two broad groups. Loss that is usually permanent, such as female pattern hair loss, which often runs in families. And loss that can grow back, linked to illness, stress, cancer treatment, weight loss or low iron. Knowing which group you are in changes everything that makes sense to do next. And the first thing to do, if your hair loss worries you, is to speak to your GP to find out the cause before spending money on hair clinics or bottles of supplements.

There is no single solution that works for everyone. Let us take it step by step.

When hair loss deserves attention

What deserves attention is the loss that worries you: in that case, the NHS advises speaking to your GP. You do not need to panic. You do need not to ignore it.

The distinction that matters most is between reversible and permanent loss. Female pattern hair loss, where hair becomes thinner especially on top of the head, often has family roots and tends to be permanent. Loss linked to an illness, a period of intense stress, cancer treatment, marked weight loss or low iron can grow back. None of these guarantees full recovery — but the potential is there, and that is why it is worth investigating the cause.

What might be changing your hair

When someone asks us what to do, the honest question before that is: what is happening. Without that, any measure is a shot in the dark.

The causes that reference clinical information identifies as capable of causing hair loss include illness, stress, cancer treatment, weight loss and low iron. Notice that these are very different things: a prolonged flu, a bereavement, a very restrictive diet, an iron-deficiency anaemia. All can affect your hair; none is resolved in the same way.

There is also the family component: female pattern hair loss often has a family origin. If your mother and your grandmother had thin hair on top of the head, it is possible you are seeing the same thing. This is not fatalism — it is simply recognising that there are causes that willpower cannot stop.

On routine, environment, diet, screens and the like: this is where the conversation usually derails. There is not, in the reference clinical information, a list of everyday causes such as sleeping badly or spending hours at the computer causing hair loss. If someone tells you it is the wrong shampoo, be sceptical.

What you can change this week

Without promising miracles, there are concrete steps that make sense and that depend on you.

First: book an appointment. If you are worried about the loss, the clinical guidance is clear — speak to your GP to find out what is causing it. Do this before considering a commercial hair clinic. Not because all clinics are bad, but because they sell you a treatment before they know the diagnosis, and the diagnosis is what decides the treatment.

Second: check your iron. Low iron is among the identified causes of loss that can reverse. This means a blood test requested by your doctor can change everything. Do not start taking iron on your own based on a video — the person who decides is the one who sees the results.

Third: look at weight and stress. Weight loss and stress are on the list of causes with potential for recovery. This does not mean that relaxing is enough; it means that, if you have been through a period like this, there is a plausible explanation and a reason to give it time.

Fourth: do not buy anything expensive this week. Give yourself the information before the product.

What usually does not help (and sometimes delays)

There are popular pieces of advice that travel faster than the evidence. It is worth recognising them.

• Miracle shampoos and tonics sold without a diagnosis. They may make hair look better; they do not stop a cause they do not treat.
• Supplements bought on impulse, without tests and without professional advice. They do not replace a varied and balanced diet or a healthy lifestyle, and they do not correct a cause they do not know.
• Treatments at hair clinics before speaking to a doctor, especially when the cause has not yet been investigated.
• Waiting for it to pass on its own for months, when there are warning signs (see below).

None of this means you cannot care for your hair lovingly. It means that cosmetic care and treatment of a medical cause are different things, and mixing them costs time and money.

And treatments? What is known

Two useful facts, both from public clinical guidance. Minoxidil can be used by women. Finasteride should not be used by women. And no treatment is 100% effective: treatments only work while they are used, which means that stopping usually brings back what was being controlled.

This matters especially for expectations. If someone promises you that a treatment always works, you are being misinformed. If they promise you can stop after a few months with no consequences, the same.

Where supplements fit — and where they do not

Here we must be frank: the evidence available for this page is emerging. The NHS indicates that some types of hair loss are permanent, such as male and female pattern baldness, which often runs in families, and that illness, stress, cancer treatment, weight loss and iron deficiency can cause hair loss that may grow back.

This has a simple practical consequence. If you have a diagnosed deficiency, what treats the deficiency is indicated by your doctor, not chosen by you from a shelf. And in no case does a food supplement replace the diagnosis or the treatment of an identified cause.

That said, if you are looking for a simple format to support your beauty routine and you have already had the situation assessed, Collagen Gummies are a product you might consider: two gummies a day, with hydrolysed collagen and vitamins and minerals, for adults. Do not exceed the recommended daily dose. Contains polyols; excessive consumption may produce laxative effects. Glow Up exists as a set, but I cannot give you amounts or composition — check the label. None of this is a treatment for hair loss, and we do not present it as one.

When this stops being ‘normal’ and becomes medical

There are signs that should not wait. If your hair loss worries you, speak to your doctor before turning to a commercial hair clinic. The clinical guidance is to see a doctor whenever the loss worries you, and that is what separates the ordinary version from the version that needs investigation.

A note on medication: do not stop or start any medicine because of your hair without speaking to the person who prescribed it.

How long until you know if something is working

Here the reference information does not give us exact timeframes, and we are not going to invent them. What we do know is that treatments only work while they are used and that none is 100% effective. In practice, this means an honest assessment takes time and continuation — not two weeks. If you are making changes, choose a reasonable interval, keep them up and review with your doctor instead of changing product every month.

What you can do today is this: book the appointment, ask for the cause to be investigated, and resist the temptation to buy solutions before you know what you are treating. Hair grows slowly; the decision to take it seriously can be quick.