Hair-loss research from organisations who have nothing to sell you. Medical societies, NIH/PubMed papers, regulators, mainstream academic medical centres, and patient nonprofits: every link below is to a third-party authority. We deliberately excluded competing clinics and clinic-blog content.
Most of the hair-loss content online is written by clinics, including ours. The conflict of interest is structural and inescapable: clinics that publish content do so to attract patients. That doesn’t make all clinic content wrong, but it does mean a patient looking for unbiased information needs a different starting point.
This page is that starting point. Every link below goes to a medical society, a peer-reviewed paper, a national regulator, a mainstream academic medical centre, or a patient-advocacy nonprofit. The list is curated by category and each entry has a one-sentence summary so you can pick what’s relevant to your case without having to read every link.
If you find a credible authority we’ve missed, particularly Canadian sources or international medical-society resources, let us know and we’ll add it. The goal is genuinely useful, not exhaustive.
The bodies that license, certify, and discipline. If you want to verify a surgeon, this is where you go first.
Patient education portal of the International Society of Hair Restoration Surgery (1,000+ surgeons in 70 countries).
Society warning about technician-driven clinics and unqualified operators.
American Board of Hair Restoration Surgery. Verify a surgeon's diplomate status (~270 worldwide).
Explains the only psychometrically validated exam dedicated to hair restoration surgery.
American Academy of Dermatology hub covering every major cause of hair loss.
Dermatologist-authored overview of how hair loss is worked up and treated.
Plain-language guide to evidence-based options for men.
Patient guide specifically addressing thinning hair in women.
National society's hub for hair-condition patient information.
Plain-English overview of pattern baldness, alopecia areata, and scarring alopecias.
College of Physicians and Surgeons of Ontario. Verify any Ontario physician's licence and history. Dr. Jones is registered #31693.
Explains exactly what disclosure information is on the public register.
If you want to read what surgeons read: the actual primary literature, with PubMed IDs and direct links.
PMID 1188424. The original paper establishing the modern Norwood-Hamilton classification still used worldwide today.
PMID 921894. The original British Journal of Dermatology paper introducing the three-grade Ludwig scale.
NBK430924. Continuously updated peer-reviewed reference covering pathophysiology, diagnosis, and management.
NBK547740. Peer-reviewed reference chapter on FUT, FUE, recipient design, and complications.
NBK537000. Comprehensive reference chapter on autoimmune hair loss.
NBK430848. Reference chapter on stress- and illness-related diffuse shedding.
NBK482378. Pharmacology, dosing, and adverse-effect reference for minoxidil.
NBK513312. Hair follicle anatomy and growth-cycle reference.
NBK278957. Open-access endocrinology reference covering hormonal mechanisms in detail.
PMC4812885. Open-access review covering Hamilton, Norwood, Ludwig, Savin, and BASP scales together.
PMC5596658. Detailed analysis of the Hamilton-Norwood system and its variants with diagrams.
British Association of Dermatologists' 49-recommendation evidence-based guideline (British Journal of Dermatology).
New England Journal of Medicine clinical-practice review on female pattern hair loss.
Pivotal trial data underlying recent JAK inhibitor approvals for alopecia areata.
Mainstream academic medical centres and government health services. None of these are clinics; they're institutional patient information.
Patient-facing overview of the major causes of hair loss.
Companion page covering workup and evidence-based treatment options.
General patient guide to causes, treatments, and prevention.
Stage-by-stage explanation with treatment overview.
Patient guide focused on female pattern hair loss and other causes in women.
Overview of medical and surgical treatment options.
Harvard Medical School-affiliated guide to evidence-based options.
A-to-Z reference on androgenetic alopecia.
Harvard guide to treatment specifically in women.
Balanced look at persistent side-effect concerns.
UK National Health Service plain-English overview.
Practical NHS guidance for women.
NIH / National Library of Medicine consumer health hub.
NIH genetics primer on the inheritance of pattern hair loss.
NLM medical-encyclopedia entry covering causes and care.
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH) patient resource.
Regulators and authoritative drug references. For finasteride, minoxidil, and dutasteride questions, this is the primary source.
Official Canadian database of every drug authorized for sale, by DIN or ingredient.
Official notice changing 5% minoxidil to non-prescription status in Canada.
Current FDA-approved prescribing information for finasteride 1 mg.
FDA prescribing information for the BPH-strength finasteride product.
FDA-approved label for 5% topical minoxidil (men).
FDA label for the women's 5% minoxidil foam.
FDA prescribing information for dutasteride. Note: dutasteride is not FDA-approved for hair loss specifically.
Federal warning that compounded topical finasteride is not FDA-approved and is linked to systemic adverse events.
NIH/NLM patient drug-information sheet.
NIH/NLM patient drug-information sheet for topical minoxidil.
Aggregated, citation-backed reference for common, severe, and long-term side effects.
Same reference format for topical minoxidil.
If your hair loss is something other than pattern hair loss (alopecia areata, scarring alopecia, or a condition affecting a child), these are the people whose entire job is to support patients.
Founded 1981; the leading US patient-advocacy and research-funding nonprofit for alopecia areata.
Curated support, treatment, and insurance resources.
Support groups, one-on-one phone support, and youth mentor programs.
Canada's national patient organization for alopecia areata.
Onboarding resources for Canadian patients receiving a new alopecia areata diagnosis.
The only US 501(c)(3) devoted specifically to children living with alopecia.
Pan-Canadian skin-patient advocacy organization's alopecia information.
If you want to look up exactly what 'Norwood IV' or 'Ludwig II' means, the original papers are open-access.
PMID 1188424. The seminal paper defining the Norwood-Hamilton stages still used today.
PMID 921894. The British Journal of Dermatology paper defining the three-grade Ludwig scale for women.
Cited public reference summarizing both Hamilton's 1951 and Norwood's 1975 work.
Public reference summarizing the female pattern grading system.
PMC4812885. Open-access review covering Norwood, Ludwig, Savin, BASP and other systems together.
Peer-reviewed paper discussing the Savin density scale and its clinical use.
The references above tell you how the field works. Your own case still needs a direct read. Send photos and Dr. Jones reviews personally, including, where appropriate, a referral elsewhere if our clinic isn’t the right fit.