What Does a Trichologist Do? When to See One — and What to Expect

Most of my clients have already tried something before they reach me. They’ve Googled. They’ve switched their shampoo three times. Some have seen their GP and been told everything looks normal. A few have spent months on supplements that promised everything and changed nothing.

They sit down in clinic and some version of the same thing comes out: “I just don’t know what’s going on with my hair.”

That’s not a silly thing to say. It’s a reasonable response to a problem nobody taught you how to investigate. And it’s exactly where a trichologist begins.

What a Trichologist Actually Does

The word comes from trikhos — Greek for hair. But the work goes well beyond what most people expect. A trichologist is not a hairdresser with extra training. Clinical trichology is a specialist discipline focused on the science of hair growth, hair loss, and scalp health — from the follicle level up.

In practice, I assess why hair is behaving the way it is. That means looking at the full picture: health history, hormonal landscape, lifestyle, stress, nutrition, medication, scalp condition, and the physical structure of the hair under magnification. No single factor tells the whole story. The job is to read them together.

How to Know Your Trichologist Is Qualified

This is something I think everyone should know before booking a trichology appointment — with me or anyone else.

Unlike “doctor” or “dentist,” the title “trichologist” is not protected by law in the UK or Ireland. Anyone can use it. There is no legal requirement to hold a qualification, and no automatic register you can check.

It’s similar to the difference between a nutritionist and a dietitian. “Dietitian” is a protected title — you can’t use it without recognised qualifications and professional registration. “Nutritionist” is not protected, and anyone can call themselves one. Most people don’t know the difference. “Trichologist” sits in the same gap.

Both bodies require what no short course can deliver: structured study measured in months and years, supervised hands-on clinical training with real clients that cannot be completed through a screen, and formal examination.

That is a fundamentally different foundation from an online certificate completed in a matter of weeks — and there are many of those available.

It’s also worth understanding the difference between a certifying body and a registration body. A certifying body trains, examines, and awards qualifications. A registration body maintains a list of members — but membership may not require the same depth of clinical training. A name on a register is not automatically the same thing as a rigorous clinical qualification.

Before you book, ask specifically: which professional body certified you, what training did that involve, and can I verify it? A qualified trichologist will welcome that question — not avoid it.

How Trichology Differs from Dermatology

This is the other question I hear most often, and it’s a fair one.

A dermatologist is a medical doctor who specialises in skin — all skin, including the scalp. Dermatologists diagnose skin conditions, prescribe medication, and perform procedures. If your scalp needs a prescription or a biopsy, a dermatologist is the right referral.

A trichologist specialises exclusively in hair and scalp. Where a dermatologist covers the full breadth of skin disease, a trichologist goes deep on one area. I spend my entire clinical practice looking at hair — what makes it grow, what makes it shed, what the scalp environment is doing, and how all of those interact with your health, your hormones, and your life.

The two are not in competition. A dermatologist may refer to a trichologist for detailed hair and scalp management, just as a trichologist refers to a dermatologist or GP when medical investigation or prescription is needed. In many complex cases, both are involved.

What Happens During an Assessment

A trichology assessment is not a quick glance. It’s a structured clinical investigation.

It starts with a detailed history. When the problem began, what else was happening in your life at the time, your medical background, current medications, hormonal status, diet, stress levels, and what you’ve already tried. The timeline often reveals more than the symptom itself.

Then a physical examination of the scalp and hair — looking at distribution, density, texture, breakage patterns, scalp colour, and visible condition.

Then trichoscopy.

Finally, blood test review. I don’t take bloods — but I review results alongside what the scalp and hair are showing. A result your GP has rightly flagged as medically normal can tell a different story when read against what’s happening to your hair. In my clinical practice, I like to see ferritin well above 30 ng/mL, not just scraping into range.

From all of that, I build a personalised management plan — what to address first, what to monitor, what to change in your routine, and whether anything needs further medical investigation.

What I Bring to the Chair

My path to trichology came through hair. I grew up in my mother’s salons, qualified as a master hairdresser, colourist, and stylist before leaving school, and spent years working with clients’ hair before I ever looked at their scalps under a trichoscope. Most trichologists come from a science or healthcare background. I came from the chair — which means I understand hair as craft and as identity, not just as biology.

That background shapes everything about how I practise. I don’t just assess what’s happening clinically — I understand what it means to the person sitting across from me. Hairdressers are often the first people someone confides in about their hair changing. As a master stylist, I was already in that conversation long before I became a trichologist. I see people at every level — the science, the styling, the confidence, the emotion.

Over more than a decade of clinical practice, my work has grown well beyond the scope of standard trichological training. I use DNA analysis and mineral profiling to build a deeper biological picture. I lead clinical research — including current studies on GLP-1 medication and hair shedding — in partnership with Munster Technological University, and I develop and test my own formulations based on what that research reveals.

I also coach hair professionals, work with clients in the public eye navigating hair concerns, and mentor other trichologists. Each of those conversations deepens my understanding of what people need from their hair — and what this profession can be.

And I understand — from thousands of consultations, not just theory — that the psychological impact of hair loss is real and significant. How your hair makes you feel is not a footnote to the clinical assessment. It’s the reason you’re sitting in the chair. Helping someone feel confident again isn’t a side effect of good trichology. It’s the point.

When Should You See a Trichologist?

There’s no threshold you need to reach first. But in practice, most people come to me when:

Your hair has changed and you don’t know why. More shedding, less volume, a different texture — something has shifted and you can’t account for it.

Your GP says bloods are normal but the problem continues. A GP screens for medical conditions — that matters, and it comes first. But normal bloods and ongoing hair problems can sit side by side. The gap between “medically normal” and “optimal for your hair” is real. Read more about blood tests and hair loss.

You’ve tried products or treatments that didn’t work. Switching shampoo, taking biotin, buying a laser cap — and nothing changed because the underlying cause was never identified. Assessment before intervention. Always.

You’re on medication that might be affecting your hair. GLP-1 weight-loss drugs, antidepressants, blood thinners, hormonal treatments — a trichologist won’t advise you to stop anything, but can help you understand and manage the hair impact alongside your prescriber. Read more about GLP-1 and hair shedding.

You want to understand what’s happening before it progresses. Early assessment changes the picture. A pattern caught early has options that one running unchecked for years may not.

What to Expect — Honestly

I won’t promise you a specific outcome before I’ve assessed you. That would be guessing, and I don’t guess. But I can tell you what I’ve seen across more than a decade and thousands of consultations.

I’ve watched people’s lives change from something as straightforward as learning how to wash their hair properly — the right frequency, the right product, the right technique for their scalp. I’ve seen shedding that had been running for months slow and stop once we identified a ferritin level that was technically “normal” but not optimal for their hair. I’ve seen clients arrive convinced they were going bald, and leave with a perfectly healthy scalp under the trichoscope — and the relief that comes from knowing.

Not every case is that simple. Some are longer journeys that require commitment and patience from the client as much as clinical skill from me. Hair grows slowly. Biology doesn’t hurry. But I’ll be honest with you from the first appointment about what the path looks like and where it leads. I’ve seen enough to know what’s likely and what’s possible — and I’ll tell you both.

What I won’t do is promise outcomes I can’t deliver, recommend treatments before I’ve assessed you, or let you spend money on something that won’t help. What I will do is give you clarity, a plan, honest guidance all the way through — and my genuine view of what’s ahead.

How Your GP and Your Trichologist Work Together

Your GP and your trichologist do different jobs — and the best outcomes come when both are involved.

Your GP screens for medical conditions. Thyroid function, iron levels, hormone balance, vitamin D, inflammatory markers — these blood tests establish whether anything is medically wrong. That investigation is vital, and it always comes first.

But here’s where the partnership matters. A blood result that’s medically normal — meaning it doesn’t indicate disease — may not be optimal for your hair. Ferritin at 32 ng/mL passes your GP’s threshold. In my clinical practice, I’d want to see it significantly higher before I’d expect healthy hair growth. That gap between “normal” and “optimal” is exactly where trichology operates.

So your GP and I are reading the same results, but asking different questions. Your GP asks: is this person unwell? I ask: does this person’s biology support healthy hair? Both questions matter. Both need answers. In practice, I regularly communicate with my clients’ GPs to make sure we’re working from the same page.

If your scalp needs medication — for a dermatological condition, for hormonal management, for anything requiring a prescription — I’ll refer you to your GP or a dermatologist. I can’t prescribe. But I can work alongside whoever does, making sure the hair-specific management runs in parallel with your medical care.

Frequently Asked Questions — Trichology

This content is for informational purposes only and does not constitute medical advice. Please consult a qualified trichologist or GP for personalised guidance.