Find the Right Weight Loss Treatment for You
Independent comparison of GLP-1 treatments from UK-regulated clinics. No jargon, no hype — just the information you need to make an informed decision.
How SlimmingBoost Works
Three steps to finding the right treatment — no sign-up required.
Understand
Learn how GLP-1 treatments work, what the evidence says, and whether you might be eligible. Plain English, referenced to NHS and NICE guidance.
Compare
See treatments side by side — costs, effectiveness, side effects, and clinic options. All from UK-regulated providers with verified registrations.
Decide
Choose a clinic and book a consultation with a prescriber. The decision is always between you and your healthcare professional.
What Are GLP-1 Treatments?
GLP-1 receptor agonists are a class of prescription medicines that mimic the action of glucagon-like peptide-1, a hormone your body naturally produces after eating. They work by slowing gastric emptying, reducing appetite, and improving blood sugar regulation.
Semaglutide (Wegovy)
Licensed in the UK for weight management. NICE-approved (TA875) for adults with BMI 30+ (or 27+ with weight-related conditions). Clinical trials showed average weight loss of 12-15% of body weight over 68 weeks.
Tirzepatide (Mounjaro)
A dual GIP/GLP-1 receptor agonist. Licensed in the UK for type 2 diabetes; weight management indication under review. Clinical trials showed average weight loss of 15-21% of body weight over 72 weeks.
Sources
- NICE Technology Appraisal TA875 — Semaglutide for managing overweight and obesity
- NHS — Obesity: identification, assessment and management (CG189)
- MHRA — Approved medicines for weight management in the UK
Why Trust SlimmingBoost?
Regulated Clinics Only
Every clinic we feature is CQC-registered for online healthcare and uses GPhC-regulated pharmacies. We verify and link to public registers so you can check for yourself.
Evidence-Based Information
Our content references NHS guidelines, NICE technology appraisals, MHRA approvals, and published clinical trial data. We don't make claims beyond what the evidence supports.
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Content last reviewed: March 2026. SlimmingBoost is not a pharmacy and does not sell or supply medicines.
Frequently Asked Questions
What are GLP-1 weight loss treatments?
GLP-1 receptor agonists (such as semaglutide and tirzepatide) are prescription medicines originally developed for type 2 diabetes that have been found to support significant weight loss. They work by mimicking a natural hormone that regulates appetite. In the UK, Wegovy (semaglutide) is licensed specifically for weight management.
Do I need a prescription for GLP-1 treatments?
Yes. All GLP-1 treatments for weight loss are prescription-only medicines (POMs) in the UK. You must have a consultation with a prescriber — either your GP or a clinician at a CQC-registered online clinic — who will assess whether the treatment is suitable for you based on your BMI, medical history, and other factors.
How much do GLP-1 treatments cost in the UK?
Costs vary by treatment and provider. Wegovy typically ranges from GBP 149-299 per month, while Mounjaro ranges from GBP 129-259 per month depending on dose and clinic. Some clinics offer subscription plans with lower monthly costs. NHS prescriptions may be available for eligible patients, though availability varies by area.
Are the clinics listed on SlimmingBoost regulated?
We only feature clinics that are registered with the Care Quality Commission (CQC) for online healthcare services, and whose pharmacy operations are regulated by the General Pharmaceutical Council (GPhC). We verify registration status and link directly to the relevant regulator's public register.
How does SlimmingBoost make money?
We earn affiliate commissions when you visit a clinic through our links and go on to purchase a treatment. This means the clinic pays us a referral fee — you don't pay any extra. Our comparison information is the same regardless of whether a clinic has an affiliate arrangement with us. We believe in full transparency about our business model.