About Yezz

Who runs this site

Yezz is written and maintained by Nick Johnson, an independent prescription pricing analyst, and published by Medstack Ltd, a UK company. Nick also runs monj.co.uk, an independent tracker of UK Mounjaro prices that verifies every listed pharmacy against the GPhC register. Yezz applies the same approach to the medicine that comes next: track the data, check the sources, and never take money from anyone with a product to shift.

No advertising. No affiliate links. No pharmacy listings. No data resale. There is deliberately nothing on this site that pays its owner when you click it.

What we are not

• We are not a pharmacy, clinic or prescriber, and we do not sell medicines or issue prescriptions.
• We do not provide medical advice. For decisions about your own treatment, speak to your GP, pharmacist or prescriber. In an emergency, call 999.
• We are not affiliated with Eli Lilly, the MHRA, NICE or the NHS, and nothing here is endorsed by them.

Editorial policy

Sourcing

Every factual claim on Yezz traces to a primary source: peer-reviewed publications (such as the New England Journal of Medicine Phase 2 trial), official registries (the MHRA products register, ClinicalTrials.gov, the GPhC register), company announcements from Eli Lilly, or clearly-labelled reputable secondary reporting. Each page lists its sources at the bottom, linked, so you can check the original rather than take our word for it.

How we handle company announcements

Most Phase 3 results so far are company toplines, not peer-reviewed papers. We label them as such, distinguish confirmed facts from projections, and revise pages when full publications appear. Trial averages are presented as averages — never as promises of individual results.

Dating and review

Every page carries a “last reviewed” date. When the regulatory position changes — a filing, a decision, a new readout — the affected pages are updated and the date moves. The current review date for all pages is 10 September 2026.

Corrections

Found an error? We want to know. Write to the contact address below with the page, the claim and the better source. Genuine corrections are made promptly and noted; we do not quietly rewrite history.

How Yezz is funded

Yezz is self-funded by Medstack Ltd as a public-interest reference. It accepts no payment for inclusion, ranking or mentions, and it never will: an information site that ranks suppliers it is paid by cannot also warn you about them. The commercial conflict of interest that shapes most medicine-content sites is simply absent here, because there is no commerce.

AI and machine-readability

Yezz publishes machine-readable surfaces — llms.txt, a sitemap and structured data on every page — so that search engines and AI assistants can quote it accurately. You are welcome to cite Yezz with a link; we ask only that the as-of date travels with the citation, because this medicine's status will change. We do not use AI-generated reviews of medicines and we do not publish automated content without human checking.

Contact

Questions, corrections and press enquiries: hello@yezz.co.uk. Medstack Ltd is a registered UK company. For anything medical, please use NHS 111, your GP, or 999 in an emergency — we cannot answer individual health questions and a website should never be your only source on a medicine.

Ready to explore? Start at the homepage, read why nothing sold as retatrutide is real, or check when it could actually reach the UK.