Cheapest Weight Loss Injections - £40 OFF Code FIRST40

  • £40 OFF first order with code FIRST40 - cheapest UK prices assured
  • Mounjaro from £129.99 after discount - genuine prescription treatment
  • GPhC-registered pharmacy with 3-day standard approval process
  • Express 24-hour approval available - start treatment immediately
Start free consultation

Treatment from £144.99

Takes under 2 minutes · 100% online
Person enjoying the outdoors

Check if you're eligible

Height 175 cm
Weight 82 kg
Your BMI
26.8
Check with prescriber
Start free consultation
Free · BMI thresholds shown are illustrative. Final eligibility is confirmed by a UK prescriber during your free consultation.
100% UK-based pharmacy Free advice & support Rated Excellent 2,400+ reviews
Which route suits you

Two clinically backed paths to results

A weekly GLP-1 injection or a daily capsule — each fully overseen by our UK pharmacy team, with no obligation to continue.

Treatment
Avg. weight loss
05%10%15%20%25%
Availability
Injection
Weekly pen · GLP-1
Avg. weight loss
~20%up to
Availability Available now
Pill NEW
Daily tablet · Oral GLP-1
Avg. weight loss
~17%up to
Availability Explore now
Live Pricing

Our Range

Prices update live and may change. The live table below always takes precedence.
All treatment is subject to a prescriber consultation and clinical approval.

How to Use FIRST40 Discount Code for Maximum Savings

Apply Code FIRST40 for Instant £40 Savings

Enter discount code FIRST40 at checkout to unlock the cheapest weight loss injection prices in the UK. Your savings are automatically applied, reducing Mounjaro 2.5mg from £169.99 to just £129.99 - the lowest price available online. The code works on all strengths and bundle options, making every treatment more affordable.

Cheapest Mounjaro Prices with FIRST40 Code

Our first-order discount code delivers unbeatable value across all Mounjaro strengths. 2.5mg pens drop to £129.99, 5mg to £159.99, and 7.5mg to £209.99. Bundle deals offer even greater savings - the Intro Duo (2.5mg + 5mg) costs just £299.99 with FIRST40, saving you £80 compared to individual purchases elsewhere.

Maximum Savings Calculator

The FIRST40 code can save you up to £80 on bundle purchases. A 3-pen Intro Trio normally £574.99 drops to £534.99, while individual pens see £40 reductions across all strengths. Returning customers enjoy £25 off every subsequent order, ensuring continued savings on your weight management journey.

How to Apply Your Discount Code

Adding FIRST40 to your order takes seconds. Select your Mounjaro strength or bundle, proceed to checkout, and enter FIRST40 in the discount code field. Your savings appear immediately, showing your new discounted total. Complete your clinical assessment and payment to secure these exclusive prices.

Genuine Prescription Treatment from GPhC Pharmacy

Your discounted Mounjaro injections come directly from our GPhC-registered UK pharmacy. Each pen contains genuine tirzepatide, the same prescription-only medicine available through NHS and private clinics. Clinical assessment ensures treatment suitability, with 3-day standard approval or 24-hour express processing available.

Bundle Deals for Extended Treatment

Maximize your FIRST40 savings with our carefully designed bundles. The Getting Started range includes dose progression packs like the Progress Duo (5mg + 7.5mg) for £369.99 with discount. These bundles support your treatment journey while delivering the cheapest per-pen pricing available.

Fast Approval and Delivery

Complete your online assessment today and receive clinical approval within 3 working days. Express 24-hour approval ensures immediate treatment start for urgent cases. All orders qualify for next-day delivery, getting your discounted Mounjaro injections delivered discreetly to your door.

NEW

GLP-1, now in adaily pill

Meet the daily GLP-1 tablet — needle-free, taken on your schedule, and prescribed by UK pharmacists. Designed for flexibility.

Join the free waitlist
Track your progress

Your journey,in your pocket

Track Now

Meet the newGLP-1 pill

  • Once-daily tablet · room-temp storage
  • No needles, no fridge
  • Up to ~15–17% in trials
How treatment works

How GLP-1 treatments help

Reduces appetite

Helps you feel fuller, sooner — so portions naturally shrink.

Curbs cravings

Quietens food noise so snacking and cravings ease off.

Slows digestion

Food stays in your stomach longer, steadying hunger between meals.

Steady blood sugar

Supports more stable glucose levels through the day.

Is GLP-1 treatment right for you?

GLP-1 medicines are powerful and prescription-only for good reason. They suit many people very well — and they aren’t appropriate for everyone. Here’s a clear, honest picture before you decide.

You may be suitable

Criteria met
BMI of 30 or higher
BMI of 27+ with weight-related conditions
Struggled to lose weight with diet alone
Ready to pair with lifestyle changes

Speak to us first

Potential risk
Pregnant, trying to conceive, or breastfeeding
History of certain thyroid cancers
Certain pancreatic or digestive conditions
Under the age of 18

Ready to start your journey?

Check Eligibility
Track your progress

Your journey, in your pocket

Track your journey

Log every dose and watch your progress build.

Download now Free to download — takes a minute to set up. App Store and Google Play

AI Meal Tracking. Built for GLP-1 Appetites.

Point your camera at any meal and in 4–6 seconds it logs the calories, macros, weight, and fullness it expects.

Never miss a dose

A daily nudge keeps you on track.

Download now App Store and Google Play

How it works

Achieve your goals in just a few simple steps.

Step 1

Start Free Consultation

Select safe UK treatments. Quick answers.

Step 2

Review By Our Clinical Team

Our expert team will use your consultation as the basis of our recommendation and communicate with you.

Step 3

Get it delivered fast

We’ll deliver direct to you, as quickly as tomorrow.

Trusted by thousands

Real people, real change

Hannah M.
Lost 2 st 4 lb in a year

“The cravings that used to run my evenings just quietened down. Having a pharmacist to message made it feel safe.”

David O.
Lost 3 st in a year

“Discreet, simple and genuinely supportive. The dose steps were explained clearly every time.”

Priya S.
Lost 1 st 9 lb in a year

“I finally feel like food isn’t the loudest thing in my head. The delivery was always discreet and on time.”

Frequently asked questions