Looking for the cheapest weight loss injections online? Here's what the price tag really means

Why do prices for weight-loss injections vary so much online?

The short answer is that headline prices don't always compare the same things. Eli Lilly raised the UK list price of Mounjaro substantially from 1 September 2025, the highest-dose pen moved from around £122 to around £330 at list, and private providers set their own margins above that. Wegovy pricing follows a different structure set by Novo Nordisk. Both medicines are subject to supply pressures, and what a provider pays through the licensed UK supply chain directly affects what they charge. So when you see a range of prices for what looks like the same injection, part of that gap is dose, part is supplier relationship, and part is what's bundled in.

The things that are sometimes bundled in and sometimes not: a clinical consultation fee, a prescription fee, delivery, and any ongoing clinical support. Some providers list the medicine cost alone and add the rest at checkout. Others (like the team at nume) build everything into one figure. Neither approach is illegal, but they make it genuinely hard to compare on price alone without reading the small print carefully. Our frequently asked questions explain exactly what our single price covers if you want to check.

One more variable worth knowing: the dose you need affects the monthly cost, and your dose is determined by a prescriber based on your response and tolerability, not by which price bracket you choose. Starting at the lowest strength and titrating upward is how the licensed treatment works, per NHS guidance on tirzepatide.

What does a legitimate price for cheapest online weight loss injections actually need to include?

Because Mounjaro and Wegovy are prescription-only medicines under UK law, any compliant provider must carry out a clinical assessment before supply. That means a valid price has to cover (at minimum) prescriber time, a prescription, and the medicine itself. Delivery and aftercare may or may not be included. Comparing where to get weight-loss injections is worth doing systematically: add up consultation, prescription, medicine, delivery and support costs together, not just the figure on the product listing.

A real clinician, not a questionnaire algorithm, has to make the clinical call. At nume, a GPhC-registered Independent Prescriber reads every consultation personally and the same day. That prescriber time has a cost, and any provider who doesn't charge for it separately is absorbing it somewhere else in the price. We're deliberately not the cheapest option on the market. What that means in practice: one transparent price that covers consultation, prescription, treatment, delivery and 7-day aftercare, with no renewal charged until you choose to order again and a prescriber has reviewed your progress.

You can verify any online pharmacy's registration (including ours) on the GPhC pharmacy register (our registration number is 9012878). That check costs nothing and takes under a minute. Worth doing before you order from anyone.

Is 'cheapest' actually the right way to shop for a prescription weight-loss medicine?

It's a question worth sitting with. The MHRA has warned publicly (and seized large volumes of counterfeit product to prove the point) that fake weight-loss pens are being sold online, including through social media, at prices that undercut the legitimate market. Some of those counterfeits have contained insulin rather than the labelled medicine, with serious consequences for patients. The MHRA's Yellow Card scheme takes reports of suspect sellers, and the regulator is clear that medicines sold without a clinical assessment are a red flag regardless of price.

For a medicine that requires a prescriber, ongoing monitoring, and a licensed supply chain to be safe and effective, the price comparison that matters most isn't the smallest monthly number, it's whether the assessment was real, the medicine is genuine, and someone qualified is available when you have a question at 8pm on a Saturday. Those things have costs that a genuinely cheap option can't easily absorb. You can read more about what affordable weight-loss treatment looks like in practice and the safest ways to approach cost on the linked pages.

The NICE appraisal of tirzepatide (TA1026) confirms this is a clinically significant intervention for eligible adults, which makes the clinical oversight around it more important, not less.

Does nume run discount codes or cheaper deals on weight-loss injections?

No. nume does not run discount codes, voucher promotions, referral schemes or sale pricing on any prescription treatment. That's a deliberate decision. Discounting a prescription medicine to incentivise orders sits uncomfortably with the clinical process that has to sit underneath every single one, and frankly, if you see a code for weight-loss injections from an unverified seller, that's a prompt to check whether that seller is on the GPhC register at all.

What we do instead: the single price you see on our treatment page includes the consultation, the prescription review, the medicine, tracked next-working-day delivery and aftercare support. No separate fees appear at checkout. NHS access to weight-loss injections is available for some people under specific criteria, that page sets out whether you might qualify and what the waiting picture looks like. For everyone else, if you want to understand what the cheapest weight loss injections currently available look like across the market, or to find out more about which single weight loss injection option comes in at the lowest price in the UK, those pages walk through the detail. Our free consultation is the place to start. Our support team can answer questions about the process before you begin.