The GLP-1 record, built like a clinical record.
Two things, done properly: a record of what actually matters while you are on GLP-1 treatment, and a price comparison that compares like with like. Built by a doctor of more than 27 years who takes these medicines himself.
Free tools, live now
Dosing
Pen click calculator →
Milligrams to clicks to millilitres, for every pen strength, with the arithmetic shown so you can check it. Doses per pen and cost per dose too.
Open the calculatorEnergy and intake
TDEE calculator →
Resting and total daily energy expenditure, and the intake a given rate of loss would need. Mifflin–St Jeor and Katch–McArdle, both written out.
Open the calculatorWhat's coming
Tracking
Tracking to a clinical standard — on a dashboard that's yours
Not a mood diary with a weight box. One timeline, with the reference ranges and risk thresholds a clinician would actually use — laid out exactly the way you want to see it.
- Weight, BMI, waist, waist-to-height — against centiles, not guesswork
- Bloods — HbA1c, full lipid panel, ApoB, ALT, renal, with targets on the chart, and glucose profiles from your sensor
- Blood pressure and fitness — including VO₂max where you have it
- Body composition — fat and muscle from your body-composition scales, and your DEXA scans if you have had them
- Dose history — titration, gaps, and what changed when
- Your own targets — set alongside your clinician and prescriber: the weight or BMI you are aiming for, and expert consensus targets (AHA/ACC, ADA, ESC/EAS, NICE, WHO) chosen for your risk profile
- Custom dashboards — drag in any chart, profile or photograph, pick from ten layouts, then play it through the weeks with every chart marking the same week
- PNG, animated GIF or one printable page — for your GP, your own notes, or sharing your progress
Your dashboard, your choice. Progress photographs are private by default and yours to delete; include them or leave them out, and anonymise them if you wish. Share only with the people you choose, through secure links you control — time-limited, and withdrawn whenever you like.
Open the dashboard →
Price comparison
Price comparison you can check
Pen prices only compare fairly once strength, pack size and delivery are taken into account. We put every price on the same footing before ranking it, and every price comes with its proof.
- Checked every night across UK online pharmacies, for every strength — Mounjaro, Wegovy and more
- Cost per milligram, per dose and per month, and the real total — medicine and delivery shown separately, then together
- Sort by what matters to you — total, prescriber (doctor or pharmacist), what's included, Trustpilot rating, stock, how often the price moves
- Price history charts — up to six providers, from a week to all of it, with overnight drops and rises flagged and market events such as list-price rises marked
- A dated screen capture behind every price, kept unaltered and time-stamped when captured
- Compare side by side — two providers, or the same provider on two different days
- Registration shown for every pharmacy listed
Today's prices, ranked by the real total
Every price, tracked over time
The proof behind every price, side by sideWhy this, and why us
Because people on GLP-1 medicines deserve tools built to the standard of the evidence behind the drugs themselves. There is a great deal of good work out there already; what we want to add is a set of tools where every number can be traced to its source, and where the working is shown rather than asserted.
The person building GLP Master is on the same journey as you, and brings the clinical background set out here. That combination is the point: the features come from using the tools week by week, and the rigour comes from the day job.
So: no transformation photography, no "incredible results", no invented scores. Where a number has a confidence interval, you will see the confidence interval. Where a figure is a week old, it will say so. Where the evidence is thin, it will say that too.
GLP Master is an information and record-keeping project. No medicines are sold, supplied, promoted or advertised on this site, and nothing here is medical advice or a recommendation to start, stop or change any treatment. Decisions about prescription medicines belong with you and your own prescriber.