Affordable Weight Loss Injections: What UK Private Pricing Actually Means

You've spotted a figure online and you're not sure it stacks up

It happens all the time. Someone Googles weight loss injections, finds a number that looks reasonable, and clicks through — only to discover that the consultation is a separate charge, delivery is added at checkout, and aftercare support means a chatbot. The headline figure was never the real price.

UK private weight-loss injections (Mounjaro (tirzepatide) and Wegovy (semaglutide)) are priced per pen, per month, and the cost genuinely varies. After Eli Lilly revised Mounjaro's UK list price upward from September 2025, reported private prices have ranged from roughly £149 to around £375 per month across providers and doses. Those numbers are real, but they are also wide enough to hide a lot. A lower figure from one provider and a higher figure from another may, in practice, include completely different things.

The most common exclusions from low headline prices: a GP consultation or prescriber review fee, the prescription charge itself, delivery, and any ongoing clinical monitoring. Some services charge for dose-change reviews or charge per question to an aftercare team. Add those up over a few months and the most affordable weight loss injection quote stops looking quite so affordable. A fuller breakdown of what weight loss injection costs include in the UK is worth reading before you commit to anything.

What nume charges and why it is priced the way it is

At nume, one price covers everything: your consultation, the prescription fee, your treatment, next-working-day tracked delivery, and access to our clinical team seven days a week. No tier structure, no add-on fees, no rolling subscription that continues until you cancel it. Every repeat order is reviewed afresh by a GPhC-registered prescriber before anything is dispensed.

We are not the cheapest option on the market. That is a deliberate choice, not an oversight. A small saving per pen is not the measure that keeps you safe on a prescription medicine, and we would rather be honest about that upfront than compete on a number that obscures the clinical work behind it. Our prescribers (you can read about our clinical team here) review every consultation the same day, including photo-ID identity verification, live weight confirmation, and GP notification in line with GPhC guidance.

If you order before 12pm on a weekday, your treatment is dispatched the same day once approved and arrives the next working day with DPD, tracked, plain packaging, nothing on the outside to indicate what's inside. More about how nume operates if you want the full picture before starting.

Why 'cheapest' is the wrong test for a prescription medicine

This is the part of the conversation that matters most. Mounjaro and Wegovy are prescription-only medicines, not supplements, not over-the-counter products. The MHRA has warned publicly about fake weight-loss pens sold online, including counterfeit versions containing insulin rather than the labelled medicine, and in late 2025 enforcement teams raided the UK's first illicit manufacturing site producing counterfeit tirzepatide pens. Suspected fake medicines can be reported directly to the MHRA via the Yellow Card scheme.

The red flags are consistent: sellers offering these medicines without a prescription, prices far below the market range, discount codes promoted on social media, no verifiable UK pharmacy registration. Any legitimate online pharmacy dispensing prescription medicines in the UK must appear on the GPhC register. You can confirm that nume's pharmacy is registered there, our GPhC premises number is 9012878, verifiable at pharmacyregulation.org in seconds.

Genuinely affordable weight loss injections, in the sense that matters, are ones supplied through a verified UK supply chain after proper clinical assessment, not the listing with the lowest number next to it. If you are based in Northern Ireland, our page on weight loss injection prices in Belfast sets out what local and online providers typically charge. If you want to understand what separates a legitimate lower-cost service from a misleading one, our guide to finding cheap weight loss injections safely explains what to look for. The full guide to finding the cheapest injectable weight loss option safely in the UK explains how to cross-check any provider before handing over payment details, and for those who want to go further, our page on the cheapest weight loss injections available in the UK looks at how to compare total costs across providers. For a broader look at how treatment options compare, our overview of weight loss injections in the UK covers the clinical picture alongside the practicalities.

Starting a consultation costs nothing

The consultation at nume is free. A GPhC-registered prescriber reviews your answers the same day, checks your eligibility against the licensed criteria for the treatment you're interested in, and contacts your GP in line with guidance. You only pay if treatment is clinically appropriate and you choose to proceed.

Mounjaro is licensed for adults with a BMI of 30 or above, or 27 or above alongside a weight-related condition such as high blood pressure, high cholesterol, obstructive sleep apnoea or type 2 diabetes, with lower thresholds applicable for some ethnic backgrounds under UK guidance. Wegovy follows similar criteria. BMI alone does not determine the outcome; the prescriber weighs the full picture, which is exactly as it should be for a prescription medicine. Start your free consultation here and see what is clinically suitable for you specifically. If you want to read more about how the two treatments compare before deciding, our treatment overview page is a good place to start.