Clinical trichology, explained properly
Evidence-based reference material on hair-loss diagnosis, scalp pathology, and trichological practice — written for working clinicians and the patients they treat.
Clinical trichology sits between dermatology and cosmetology: it focuses on the non-pharmacological assessment and management of hair and scalp disorders, and on knowing when to refer.
If you're losing hair, the first useful question isn't "what should I take" — it's "what's actually happening on my scalp." A trichologist's job is to answer that question with the same rigor a dermatologist would, then either treat what's treatable non-pharmacologically or refer you on.
This library exists so you can walk into that consultation understanding the terms on the page — pattern loss, shedding, scarring, scalp inflammation — and recognize whether the practitioner in front of you is using them correctly.
The three pillars
Every clinical decision in trichology comes down to one of these three questions. Start with the one most relevant to the case in front of you.
Diagnosis
Hair-loss patterns, scalp pathology, trichoscopy findings, and the differential between common presentations.
- Androgenetic alopecia
- Telogen effluvium
- Alopecia areata
- Scarring alopecias
Treatment
Evidence-based non-pharmacological protocols, topical regimens, and the clinical reasoning behind each.
- Topical minoxidil response
- Scalp microbiome care
- Nutritional support
- PRP & LLLT evidence
Referral & scope
Knowing when a presentation needs dermatology, endocrinology, or psychiatry — and how to make the referral land.
- Red flags for scarring
- Endocrine workup triggers
- Body-focused repetitive behaviors
- Pediatric red flags
William Gaunitz, WTS — Bio on Trichology.com
Pioneer in natural hair regrowth since 2002. Founder of Evolution Hair Loss Institute and the Advanced Trichology 5-Step Program.
20,000 People Took Oral Minoxidil — Here is What Happened
Outcomes from a real-world cohort of patients on oral minoxidil, broken down by a certified trichologist.
The Gaunitz Trichology Method
The Advanced System for Hair Growth — built on a decade of clinical work with thousands of patients.
Glossary
The terms that appear most often in trichology consults, in plain language.
Find a clinical trichologist
Reference material only goes so far. Every professional recognised in the Trichology Professional Directory has been credential-verified against their issuing institution.
Look up a verified professionalPart of the Trichology Ecosystem