Buy Retatrutide in the UK
The first triple-agonist research peptide — GLP-1, GIP, and glucagon receptor activation in a single molecule. Available in 5 mg and 10 mg lyophilised vials, HPLC-verified, COA-backed, with same-day dispatch and 24-hour delivery across the UK.
- HPLC-verified purity, lot-level COA on every parcel
- Same-day dispatch on orders before 4 PM London time
- 24-hour delivery to London, Manchester, Birmingham, Glasgow
- 24–48 hours to Sheffield, RAK, Liverpool
- Crypto or Card via Whop available across the UK
- Free shipping on orders over £100
What makes Retatrutide different
Tirzepatide activates two incretin receptors — GLP-1 and GIP. Semaglutide activates one — GLP-1. Retatrutide activates three — GLP-1, GIP, and glucagon. The glucagon arm is the distinguishing feature: glucagon stimulates energy expenditure and lipolysis in addition to the appetite suppression and insulin sensitisation effects shared with the other two molecules.
This third receptor is why the Phase 2 trial outcomes are quantitatively different from anything published before in the incretin research peptide space.
Phase 2 trial data — the headline numbers
- Retatrutide 12 mg: ~24.2%
- Retatrutide 8 mg: ~22.8%
- Retatrutide 4 mg: ~17.5%
- Placebo: ~2.1%
For context: in the SURMOUNT-1 Phase 3 Tirzepatide trial, the highest-dose arm (15 mg) reached ~20.9% body-weight reduction at 72 weeks. Semaglutide's STEP 1 trial (2.4 mg) reached ~14.9%. Retatrutide's Phase 2 numbers at 48 weeks exceed both — at a shorter timepoint.
The full mechanism comparison is covered in our Retatrutide vs Tirzepatide vs Semaglutide research post.
Vial options in UK inventory
UK delivery to your region
Buy Retatrutide UK — FAQ
REVIVE LAB UK supplies Retatrutide across all seven regions. Same-day dispatch on orders before 4 PM London time, 24-hour delivery, crypto or card via whop available.
5 mg and 10 mg lyophilised vials, both HPLC-verified and COA-backed.
Yes. Every lot is HPLC-tested. COA reference is printed on the outer box and emailed digitally at confirmation.
Yes. Crypto/Whop available across the UK. Inspect sealed packaging at the door before paying.
Phase 2 NEJM 2023: ~24.2% mean body-weight reduction at 12 mg over 48 weeks. Highest reduction reported in any incretin research peptide trial.
UK orders above £100 ship free nationwide.