Tirzepatide · UK
Tirzepatide in the UK: legality, prices and sourcing
Legal and regulatory status
Tirzepatide is licensed in the UK as Mounjaro. NICE recommended it for weight management (TA1026, December 2024), with a phased NHS rollout through GP services that began in June 2025 for people with the highest clinical need. Most UK users currently obtain it on private prescription from online pharmacies, which must carry out a clinical consultation.
Lilly raised the UK list price of Mounjaro from September 2025, which pushed private prices up and drove interest in “tirzepatide UK” price comparisons. Tirzepatide sold as a lyophilised research chemical is not Mounjaro and is not licensed for human use.
Tirzepatide UK price guide
| Vial size | Price (GBP) | Price per mg |
|---|---|---|
| 10mg | £59.99 | £6.00 |
| 15mg | £79.99 | £5.33 |
| 30mg | £129.99 | £4.33 |
Research-grade lyophilised vials from Pristine Peptides, checked 2026-10-22. Prices and stock change; the product page is authoritative.
What to check before buying Tirzepatide in the UK
- Batch-matched COA with HPLC purity and mass-spec identity.
- Lyophilised, sealed vials — not pre-filled pens or pre-mixed solutions.
- UK dispatch, avoiding customs delays and unrefrigerated transit.
- Research-use labelling and no dosing or medical claims.
Full guidance: buying research peptides in the UK and peptides and UK law.
Tirzepatide UK FAQs
Is Tirzepatide legal in the UK?
Tirzepatide is licensed in the UK as Mounjaro. NICE recommended it for weight management (TA1026, December 2024), with a phased NHS rollout through GP services that began in June 2025 for people with the highest clinical need.
How much does Tirzepatide cost in the UK?
Research-grade Tirzepatide vials start from £59.99 (10mg) at our referenced supplier. Licensed pens from pharmacies are priced separately and require a prescription.
Where can you buy Tirzepatide in the UK?
As a research chemical from UK suppliers that publish batch-specific certificates of analysis. Use our supplier checklist to compare sources.
What should a Tirzepatide certificate of analysis show?
HPLC purity, mass-spec identity matching ≈ 4,814 g/mol (39 amino acids), a batch number matching the vial, the testing lab and a test date. See how to read a COA.