Buy Weight Loss Injection Single Pen Online UK

  • Single pens from £129.99 (first order price) across all dose strengths
  • GPhC-registered UK pharmacy with clinical assessment included
  • Express 24-hour approval available for urgent orders
  • £40 discount on first orders with flexible single pen options
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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.

Single Pen Weight Loss Injection Pricing & Options

Complete Single Pen Range Available

Our single pen weight loss injections offer maximum flexibility for your treatment journey. Each Mounjaro pen contains four doses, providing one month's treatment when used once weekly as prescribed. Choose from six dose strengths, each available as individual pens for purchase.

Transparent Single Pen Pricing

2.5mg single pen: £169.99 (£129.99 first order). 5mg single pen: £199.99 (£159.99 first order). 7.5mg single pen: £249.99 (£209.99 first order). 10mg single pen: £269.99 (£229.99 first order). 12.5mg single pen: £299.99 (£259.99 first order). 15mg single pen: £318.99 (£278.99 first order). Returning customers save £25 on every order.

Why Choose Single Pen Purchasing

Single pen buying provides ultimate flexibility for your weight management programme. Test your response to treatment without committing to larger quantities. Ideal for those starting their journey or maintaining their target weight with occasional top-ups. Order exactly what you need, when you need it.

Clinical Assessment & Approval Process

Every single pen purchase includes comprehensive clinical assessment by our qualified prescribers. Standard approval takes three working days, with express 24-hour processing available as paid upgrade. Our clinical team reviews your medical history and current health status to ensure Mounjaro suits your needs.

Prescription-Only Treatment Support

Mounjaro is prescription-only medicine requiring clinical oversight. Each injection activates GIP and GLP-1 hormones, which may help regulate appetite and promote feelings of fullness. Treatment must be used alongside reduced-calorie diet and increased physical activity for optimal results.

Secure Online Ordering

Purchase your single weight loss injection pen through our secure checkout system. Clinical questionnaire completed online with rapid assessment turnaround. Discreet packaging with tracked delivery to your preferred address. Your single pen ships directly from our GPhC-registered pharmacy.

Ready to Order Your Single Pen

Don't wait to start your weight management journey. Single pens offer the perfect introduction to prescription weight loss treatment. Use code FIRST40 for £40 off your first order. Clinical assessment begins immediately after purchase completion.

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