What changed for trichologists in 2025: a review of register standards, a world congress in London, and a new generation of clients on weight-loss medicines.
From the editors
This edition looks back at 2025 from the trichology clinic. It belongs to our Four years in review series, published in 2026, and every event in it has been checked against a source listed at the end.
Trichology is not statutorily regulated in the UK or Ireland. That fact frames everything in this edition. Without a statutory regulator, standards are set by professional bodies, by accredited registers and by each practitioner's own habits. In 2025 those standards were examined closely: the Professional Standards Authority published a review of the Institute of Trichologists' register, and the Institute gathered the field in London for the World Congress of Trichology.
Clinically, the year brought a question that trichologists increasingly hear: could my weight-loss injection be making my hair fall out? The honest answer, in 2025, was that the evidence was mixed. This edition explains why, and what a careful consultation looks like while the science settles.
The Trichollective editorial team
Standards
In a field without statutory regulation, accredited registers and professional bodies carry the weight of public trust. In 2025 that weight was examined.
Photograph Alex Sheldon / Unsplash
Words by the Trichollective editorial team
The Institute of Trichologists holds a register that is accredited by the Professional Standards Authority, the body that oversees the statutory health regulators and runs the Accredited Registers programme. Accreditation is not statutory regulation. It means the register has been assessed against the PSA's standards for governance, complaints handling, education and public information.
When the PSA accredited the Institute's register, it attached eight conditions. On 4 July 2025 it published a condition review. The Institute had met the first six conditions; the seventh and eighth had not been met, and the PSA set three new conditions and five recommendations.
One of the original conditions is worth every trichologist's attention: the Institute was asked to make its public information about the evidence for trichology clear about the limitations of that evidence. It is a standard that applies to any practitioner, on any register or none.
“Be clear about what the evidence shows, and equally clear about what it does not.
On 28 and 29 September 2025 the Institute held the World Congress of Trichology at the Royal College of Physicians in London, bringing together trichologists, students, hair restoration practitioners and hair-loss specialists. On 1 October it published the results of a patient experience survey of its registered trichologists, reporting a high level of satisfaction. The published summary did not give percentages, so we do not quote any.
What does accreditation by the Professional Standards Authority mean for a trichology register?
Sources
Every fact in this edition, and where it came from.
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Next · 2025 · Medical
Medical, 2025
Clearer warnings, firmer guidance.