The market for private weight loss medication in the UK has grown enormously over the past two years. There are now dozens of online providers offering Mounjaro, Wegovy, and other medications — and the quality, pricing, and level of clinical support varies significantly. This guide helps you evaluate what to look for.
What makes a good provider?
We're not going to recommend specific providers (we're not affiliated with any), but we can tell you what to look for when comparing options:
1. GPhC-registered pharmacy
Any pharmacy dispensing prescription medication in the UK must be registered with the General Pharmaceutical Council (GPhC). You can verify registration at pharmacyregulation.org. If a provider can't tell you their GPhC registration number, don't use them.
2. Qualified prescriber
A prescription must be issued by a qualified prescriber — a doctor (GMC-registered), a pharmacist prescriber, or a nurse prescriber (NMC-registered). The prescriber should review your medical history, current medications, and health conditions before issuing a prescription. A provider that sends medication without any clinical assessment is operating outside the law.
3. Transparent total pricing
Look beyond the headline medication price. Check for: initial consultation fees, follow-up appointment costs, delivery charges, and whether blood tests are required and at whose cost. The cheapest headline price isn't always the cheapest total cost.
4. Ongoing clinical support
Good providers include regular check-ins as part of their service — typically monthly during dose escalation, then every 2–3 months at maintenance. This should include monitoring your weight loss progress, managing side effects, and adjusting your dose. Providers that just send repeat prescriptions with no follow-up are offering a lower standard of care.
5. Clear eligibility criteria
A legitimate provider should have clear eligibility criteria and should refuse to prescribe if you don't meet them. If a provider seems willing to prescribe to anyone regardless of BMI or health status, that's a concern — it suggests clinical governance may be lacking.
Red flags
- No consultation required: Prescription medication without clinical assessment is illegal in the UK
- Very low prices: If a price seems too good to be true, the product may be counterfeit or sourced from unregulated supply chains
- Social media sellers: Never buy medication from social media, marketplaces, or individuals. The MHRA has seized hundreds of counterfeit pens from such sources
- No pharmacy registration visible: Legitimate providers display their GPhC number prominently
- Pressure to buy: Good healthcare providers inform and advise — they don't use sales tactics or urgency messaging
- No option to contact a prescriber: You should be able to speak to or message a clinical professional if you have concerns during treatment
Types of providers in the UK
Online prescribing services: The most common route. You complete an online consultation (health questionnaire), a prescriber reviews it, and medication is delivered to your home. Often the most competitive on price. Examples include pharmacy-led services and telehealth platforms.
High-street pharmacies: Some pharmacy chains now offer weight loss medication services with in-person consultations. May be more expensive but offers face-to-face clinical contact.
Private GP clinics: Traditional private clinics where you see a doctor in person. Generally the most expensive but provides the most comprehensive clinical oversight.
Telehealth programmes: Comprehensive services that combine medication with coaching, dietary support, and ongoing clinical monitoring. More expensive but closest to the NHS wraparound care model.
Questions to ask before signing up
- What is the total cost for month one, including consultation and delivery?
- What's included in the monthly price — is it just medication, or does it include clinical reviews?
- How do I contact a prescriber if I have concerns or side effects?
- What is your GPhC registration number?
- Where do you source your medication from?
- What happens if the medication is out of stock?
- Can I switch medications or adjust my dose without additional fees?