Weight loss injections prices at our latest check
Our weight loss injection price comparison for the UK shows what a 4 week pen costs right now, from the cheapest to the most expensive pharmacy we check.
| Medicine and dose | Lowest | Typical | Highest |
|---|---|---|---|
| Mounjaro 2.5 mg (starter) | £99 | £159 | £239 |
| Mounjaro 15 mg (top dose) | £229 | £300 | £369 |
| Wegovy 0.25 mg (starter) | £76.94 | £100 | £205 |
| Wegovy 2.4 mg (top dose) | £135 | £200 | £290 |
Prices are for the pen only. Delivery is usually extra. Last checked 20 September 2026.
What is Healthwise360?
Healthwise360 is an independent UK price comparison site for weight loss injections. We compare Mounjaro and Wegovy prices at 60+ GPhC-registered pharmacies, so you can see the full cost before you start a consultation.
We compare; we do not prescribe. We never sell or send medicines, and we never tell you which pharmacy to choose. The choice is always yours.
What would you like to do?
Use our free weight loss injection price checker for the UK in the way that suits you.
Find the lowest price
Compare weight loss injection prices by dose, from the lowest price up.
See lowest pricesChoose between Mounjaro and Wegovy
A simple weight loss injections comparison for the UK, side by side.
Compare the twoHow much do weight loss injections cost in the UK?
In the UK, weight loss injections cost from about £76.94 a month for a Wegovy starter pen and £99 for a Mounjaro starter pen. The price rises as your dose goes up, to as much as £369 a month for a Mounjaro 15 mg pen. The same Mounjaro 2.5 mg pen costs £99 at one pharmacy and £239 at another, a £140 difference.
The cost of weight loss injections in the UK depends on three things:
- The medicine. Mounjaro and Wegovy have different prices at every dose.
- Your dose. Each pen lasts 4 weeks. Most people move up a dose every 4 weeks, and higher doses cost more.
- The pharmacy. Prices, delivery fees, and offers are different at every pharmacy.
How much are weight loss injections in the UK each month?
Most pharmacies charge about £100 (Wegovy) to £154 (Mounjaro) for a starter pen, and about £200 (Wegovy 2.4 mg) to £299 (Mounjaro 15 mg) on the usual top dose.
What your first 3 months will really cost
Many sites only show the price of your first pen. But your dose goes up each month, so the price goes up too. This weight loss injections cost comparison for the UK shows the total for your first 3 months.
| Month | Mounjaro dose | Lowest price | Wegovy dose | Lowest price |
|---|---|---|---|---|
| Month 1 | 2.5 mg | £99 | 0.25 mg | £76.94 |
| Month 2 | 5 mg | £154 | 0.5 mg | £76.94 |
| Month 3 | 7.5 mg | £178 | 1 mg | £76.94 |
| 3-month total | £431 | £230.82 | ||
Prices based on the lowest single-pharmacy prices across all verified providers at our latest check (20 September 2026).
Compare weight loss injections UK: Mounjaro vs Wegovy
Want to compare weight loss jabs in the UK? Mounjaro and Wegovy are the two main weight loss injections. Both are weekly pens that help you feel full for longer. Here is how they compare.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Medicine inside | Tirzepatide | Semaglutide |
| Made by | Eli Lilly | Novo Nordisk |
| How you take it | One injection a week | One injection a week |
| Starter dose | 2.5 mg | 0.25 mg |
| Usual top dose | 15 mg | 2.4 mg |
| Average weight loss in the main trial | 20.9% after 72 weeks (15 mg dose) | 14.9% after 68 weeks |
| Starter pen from | £99 | £76.94 |
In trials, people lost more weight on Mounjaro. But the right choice depends on your health, and a prescriber will help you decide.
Trial results: SURMOUNT-1 (Mounjaro), STEP 1 (Wegovy).
Why weight loss injection prices are so different
Weight loss jab prices in the UK can differ by more than £130 for the very same pen. These six things make the difference:
- Your dose. Higher doses cost more.
- First order offers. A low first price can jump in month 2.
- Delivery. Pens must stay cold, and some pharmacies charge extra for this.
- Consultation fees. Most are free, but some pharmacies add one.
- Subscriptions. Some lock you into a monthly plan.
- Bundles. Buying 2 or 3 pens at once can lower the price of each pen.
That is why it pays to check the full price with delivery, not just the headline price. Our weight loss jab price comparison makes it easy to compare weight loss jab prices fairly.
How we compare weight loss injection prices in the UK
Every pharmacy in our UK weight loss injections price comparison passes the same 5 checks. No pharmacy can pay to rank higher.
GPhC registration
We check every pharmacy on the official General Pharmaceutical Council register.
Safe prescribing
A qualified prescriber must review your health before any medicine is sent.
Full price
We record the price of every dose, plus delivery and any extra fees.
Delivery
We check cold packaging, delivery times, and tracking.
Ongoing support
We look at follow-up help, dose advice, and how easy it is to get in touch.
Is it safe to buy weight loss injections online?
Yes, if you use a UK online pharmacy registered with the GPhC, and a prescriber checks your health first. Never buy weight loss injections from a website that does not ask about your health. Follow these 3 steps before you pay:
- Find the GPhC number on the pharmacy's website. It is usually in the footer.
- Check it on the official GPhC register. The name and address should match.
- Expect a health questionnaire. A real online pharmacy for weight loss injections will always ask about your weight, health, and other medicines.
Red flags: no GPhC number, no questions about your health, prices far below every other pharmacy, or selling "weight loss pens" without a prescription.
Why choose
to compare weight loss injection prices
Whether you call it a weight loss injection, a jab, a medication, or a treatment, you want the same thing: the best price from a safe UK pharmacy. That is why we built a weight loss treatment price comparison that shows the full cost.
Here is why Healthwise360 is the easy way to compare weight loss injection prices in the UK.
Our goal is simple: clarity, transparency, and confidence when you compare treatment options. We do not promote specific prescription products to the public.
Learn about Healthwise360 or see how we compare pharmacies.
Note. Illustrative image: Healthwise360 publishes comparison information only. Treatment decisions belong with a registered UK prescriber.
Medical disclaimer
The weight loss treatment on this site is discussed only in general terms. A registered clinician must assess you before any supply. Answer questionnaires honestly, read the patient information for your medicine, and speak to your GP or NHS 111 if you are unsure. This site is informational only and does not replace medical advice. Read our GPhC verification guide and comparison methodology. For company facts, see our reference information page.
FAQ
Frequently Asked Questions
Quick answers about Healthwise360 and how our comparisons work. This is not medical advice; always follow your prescriber and official patient information.
A starter pen costs from £76.94 (Wegovy) or £99 (Mounjaro) a month. Higher doses cost more, up to £369 a month for Mounjaro 15 mg. Prices change often, so check our table for the latest price.
The cheapest pharmacy changes often and is different for each dose. Our price table shows the cheapest price from our latest check first, so you can compare weight loss treatment prices in the UK for every dose.
In the main trials, people lost 20.9% of their weight on Mounjaro 15 mg and 14.9% on Wegovy 2.4 mg. But the best choice depends on your health. A prescriber will help you decide.
Sometimes. Depending on your BMI and any health conditions linked to your weight, the NHS may offer weight loss medicines. Rules are strict and waiting times can be long. Ask your GP.
From a GPhC registered pharmacy, online or in store, after a prescriber checks your health. You cannot buy them without a prescription.
The main two are Mounjaro (tirzepatide) and Wegovy (semaglutide). Both are GLP-1 medicines that you inject once a week. Our GLP-1 price comparison for the UK covers both. Weight loss medication prices in the UK change often, so compare weight loss medication prices before you buy.
No. Some include free check-ins, dose advice, and an app. Others only send the pen. Each pharmacy review shows what support is included.
We update our weight loss injections UK price comparison regularly and show the date of the last check next to every price. Always confirm the final price on the pharmacy's website before you pay.
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