Buy Weight Loss Injection UK - Single Pen from £129

  • Single pen purchase - all 6 doses available from £129.99
  • First order discount £40 OFF with code FIRST40
  • GP prescription service included with clinical assessment
  • Fast UK delivery from GPhC-registered pharmacy
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Treatment from £144.99

Takes under 2 minutes · 100% online
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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.

Choose Your Single Pen Dose - Order Today

Single Pen Weight Loss Injection Pricing

Purchase individual Mounjaro pens with transparent pricing for each dose strength. Our prescription-only weight loss injections are available as single pens, perfect for those wanting to try a specific dose or continue their established treatment plan.

Starting dose 2.5mg single pen: £169.99 (£129.99 first order). Progressive doses available: 5mg £199.99 (£159.99 first order), 7.5mg £249.99 (£209.99 first order), 10mg £269.99 (£229.99 first order), 12.5mg £299.99 (£259.99 first order), and 15mg £318.99 (£278.99 first order).

Why Choose Single Pen Purchase

Single pen ordering offers flexibility for your weight management journey. Whether you're starting treatment, adjusting your dose under medical supervision, or maintaining your current prescription strength, individual pens provide the exact quantity you need without committing to larger bundles.

Each pen contains four weekly injections of tirzepatide, lasting one month of treatment when used as prescribed alongside reduced-calorie diet and increased physical activity.

Fast UK Prescription Service

Our clinical assessment process ensures safe prescribing of this prescription-only medicine. Complete your online consultation with our UK-registered GPs who will assess your suitability for Mounjaro weight loss treatment.

Standard GP approval typically completed within 3 working days, or upgrade to express 24-hour assessment for faster treatment start. All prescriptions fulfilled by our GPhC-registered pharmacy with tracked UK delivery included.

How Mounjaro Works

Tirzepatide activates GIP and GLP-1 receptors - two natural hormone pathways that may help regulate appetite and promote feelings of fullness. This dual-action mechanism can support weight management when combined with lifestyle changes.

This MHRA-approved treatment is subject to additional monitoring and must be used alongside dietary modifications and increased physical activity for optimal results.

Order Your Single Pen Today

Select your prescribed dose strength and complete your purchase with confidence. New customers save £40 with code FIRST40, while returning customers receive £25 off every order. Start your clinically-supported weight management journey with our trusted UK pharmacy service.

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