Certificate of analysis
| Product | GLP-3, 10 mg |
| Lot | RET10-2611A |
| Purity, RP-HPLC (220 nm) | 99.0% |
| Identity, ESI-MS | Expected 4731.4 · Found 4731.6 |
| Appearance | White lyophilised powder |
| Net peptide content | [Value] |
| Date of analysis | 27 Oct 2026 |
Lot RET10-2611A
Retatrutide (LY3437943), supplied as a dry powder in a sealed glass vial. Read the library entry.
99.0%
Confirmed
27 Oct 2026
Lab report per lotIndependent HPLC and MS
Secure checkoutNo account needed
Replaced if damagedTell us within 14 days
Plain, sealed packingVial in a padded sleeve


Ordering 10 or more vials, or for an institution with a purchase order? Request a quote. We answer within one working day.
For laboratory research only. Not for human or veterinary use. You confirm this once at checkout.
Every vial in this listing comes from lot RET10-2611A. It was tested before it went on sale, and the lot number on your label opens the same certificate.
| Lot | Size | Purity | Tested | Status |
|---|---|---|---|---|
| RET10-2611A | 10 mg | 99.0% | 27 Oct 2026 | On sale |
| RET10-2609A | 10 mg | 99.1% | 15 Sep 2026 | Sold out |
| Product | GLP-3, 10 mg |
| Lot | RET10-2611A |
| Purity, RP-HPLC (220 nm) | 99.0% |
| Identity, ESI-MS | Expected 4731.4 · Found 4731.6 |
| Appearance | White lyophilised powder |
| Net peptide content | [Value] |
| Date of analysis | 27 Oct 2026 |
GLP-3 is our listing name for retatrutide (LY3437943), a 39-residue lipidated peptide from Eli Lilly that acts on the GIP, GLP-1 and glucagon receptors. Phase 2 results were published in 2023 and phase 3 trials began reporting in 2025. It is not a licensed medicine anywhere.
Read the full entry, with 10 references Semaglutide vs tirzepatide vs retatrutide| Where | Service | Time | Price |
|---|---|---|---|
| UK | Royal Mail Tracked 24 | Arrives , next working day aim | Free |
| EU | Royal Mail International Tracked | 3 to 5 working days | £9.95 · free over £150.00 |
| US and Canada | Royal Mail International Tracked | 5 to 7 working days | £12.95 · free over £200.00 |
Orders placed before 3 pm on a working day leave the same day. If a vial arrives damaged or you receive the wrong item, tell us within 14 days and we send a replacement.
The lot shown in the buy box. It is printed on your vial label, and the same number opens its certificate in the lot register.
GLP-3 (retatrutide) as a dry, white powder sealed under a crimped cap. Nothing else is added.
Yes. GLP-3 is the name we list it under. The vial label and the certificate both name retatrutide (LY3437943), and the mass spectrum confirms its identity.
UK orders paid before 3 pm on a working day leave the same day by Royal Mail Tracked 24, free, and usually arrive the next working day. EU orders take 3 to 5 working days; the US and Canada 5 to 7.
No. GLP-3 is sold as a research material for laboratory use only. It is not a medicine and is not for human or veterinary use. The library entry describes what published studies measured, not how to use it.
Order 3 or more vials of the same product and size for 10% off each, or 5 or more for 15% off. The discount shows in the basket straight away.