GLP-3
A long-acting triple-receptor (GLP-1 / GIP / glucagon) research peptide studied in metabolic-signaling models.
30-day purity guarantee · Free US shipping · Ships same day before 14:00 ET
SizeResearch findings +
- Triple-receptor agonism — studied for combined GLP-1 / GIP / glucagon receptor activity.
- Metabolic signaling — investigated in energy-balance and glucose-handling research.
- Long-acting profile — lipidation studied for extended half-life in pharmacokinetic models.
Descriptions refer to published research models, not human or veterinary use.
Specifications +
| CAS | 2381089-83-2 |
|---|---|
| Mol. weight | 4731.32 g/mol |
| Sequence | 39 residues · Aib substitutions · K* lipidation site |
| Batch | RT-26-0528 · synth. 2026-05-28 · Florida, USA |
| Purity | ≥99% (RP-HPLC) · identity by mass spec |
| Form | Lyophilized powder |
Certificate of Analysis +
Every order includes a batch-specific Certificate of Analysis — RP-HPLC purity plus mass-spec identity — lot-matched to the vial you receive. View sample COAs →
Storage & handling +
Lyophilized powder. Store sealed at −20°C, protected from light. Reconstitute per your laboratory protocol. Ships from Florida, USA. Laboratory handling guidance only — not usage instruction.
Sources & references +
Retatrutide phase-2 trial, New England Journal of Medicine (2023).
Made in the USA. Quality you can trust.
Synthesized to ≥99% purity thresholds, rigorously verified by RP-HPLC.
Synthesized, tested, and fulfilled exclusively within the United States.
Vacuum-sealed and stabilized to preserve molecular integrity in transit.
Independent mass-spectrometry and a Certificate of Analysis for every batch.
Everything you need to know.
Our synthesis process, laboratory verification protocols, and research-use guidance.
What purity level are your peptides, and how is it verified? +
Every batch targets ≥99% purity, measured by reverse-phase HPLC, with identity confirmed by mass spectrometry. Both results are recorded on a lot-matched Certificate of Analysis.
What is a Certificate of Analysis (COA) and how do I read it? +
A COA documents identity, purity, and content for one specific lot. The lot number on the certificate matches the number on your vial — purity by HPLC, identity by mass spec, tested by an independent lab. See a sample COA →
Where are your peptides manufactured? +
Synthesized, tested, and fulfilled in Florida, USA — never relabeled from overseas bulk. Domestic synthesis means a shorter chain of custody and a process we can stand behind by name.
How should I store peptides? +
Lyophilized powder stores sealed at −20°C, protected from light. Reconstitute per your laboratory protocol. Handling guidance only — not usage instruction.
How fast do you ship, and is cold shipping required? +
Orders placed before 14:00 ET ship the same day from Florida via USPS Priority. Lyophilized material is stable at ambient temperature for standard transit times.
The standard for research integrity.
Premium research-grade peptides, American-made and engineered for precision. Tested, traceable, and verified for absolute purity — with a Certificate of Analysis on every order.
For researchers, 21 and over.
Puritas Lab supplies materials for laboratory and research use only. They are not for human or veterinary consumption and are not intended to diagnose, treat, cure, or prevent any disease. By entering, you confirm you are at least 21 years of age and acquiring these materials for legitimate research purposes.
Access to this site constitutes acceptance of our Research-Use Terms. Nothing on this site is an offer to sell, or a solicitation to buy, any product for human use.