Midwest Peptide sells research peptides exclusively to qualified researchers and laboratories for in vitro and laboratory use. Please confirm before continuing.
By proceeding you affirm the statements above are true. Products are sold for research use only (RUO), are not for human or veterinary use, not for use in diagnostic procedures, and have not been evaluated by the U.S. Food and Drug Administration. Full disclaimer.
For research purposes only. This compound is not FDA approved. All data presented is from clinical trials for educational reference.

A 39-amino acid triple agonist peptide targeting GIP, GLP-1, and glucagon receptors, studied for metabolic regulation and body composition in clinical research. Premium Research Peptide.
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| Property | Details |
|---|---|
| Form | Lyophilized powder |
| Vial Size | 10mg, 20mg |
| Storage | Store in a cool, dry place away from direct light |
| Intended Use | This product is intended strictly for qualified laboratory researchers. It is not for human or veterinary consumption and must not be used as a drug, food additive, cosmetic, or household item. |
⚠️ Disclaimer: This compound is sold for in vitro research and educational purposes only. It has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease. All buyers must be authorized research personnel or institutions.
Terms of Sale: By purchasing this product, you confirm that you are a qualified professional conducting lawful scientific research. Midwest Peptide and its affiliates are not liable for any misuse or mishandling of this material.
GLP-3 RT is a research peptide also known as retatrutide, a synthetic 39-amino-acid triple agonist that activates the GLP-1, GIP, and glucagon receptors. It is the most-recently developed molecule in the GLP receptor agonist class and is supplied strictly for Research Use Only.
Yes. GLP-3 RT and retatrutide refer to the same molecule. GLP-3 indicates its position in the receptor agonist class (single GLP-1, dual GLP-1/GIP, triple GLP-1/GIP/glucagon), and retatrutide is the international nonproprietary name. Both names map to the identical sequence.
GLP-3 RT activates three receptors (GLP-1, GIP, glucagon) while GLP-2 TZ activates two (GLP-1, GIP). The added glucagon-receptor activity of GLP-3 RT is associated in research with stronger effects on energy expenditure, hepatic lipid handling, and metabolic rate.
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Research articles and insights related to GLP-3 RT

Why GLP-3 RT outperforms single and dual incretin agonists in preclinical research models comes down to the glucagon receptor component, energy expenditure, and integrated metabolic axis engagement.
May 5, 2026

GLP-2 TZ and GLP-3 RT differ in receptor count and downstream pharmacology. This research-context comparison covers mechanism, body composition, and how to choose between them.
May 5, 2026

Researchers can buy GLP-3 RT through the Research Use Only research peptide market. The molecule is not FDA approved, but RUO suppliers ship batch-verified material for laboratory work.
May 5, 2026

GLP-3 RT is still in clinical development. The way researchers obtain GLP-3 RT for preclinical work is the Research Use Only supply chain, where COA-verified material is sold for laboratory studies.
May 5, 2026
Not for human consumption. This product is sold exclusively for research and educational purposes. It is not intended to diagnose, treat, cure, or prevent any disease.
All clinical trial data and research findings presented on this page are sourced from peer-reviewed journals and official publications. They are provided for educational reference only and should not be interpreted as medical advice or product claims.
By purchasing this product, you confirm that you are a qualified researcher and will use it in accordance with all applicable laws and regulations.
GLP-3 RT is used in preclinical research on triple-agonist incretin pharmacology, energy expenditure and thermogenesis, hepatic lipid metabolism, body composition partitioning, and glucose homeostasis. All cited studies are conducted in rodent or in-vitro systems.
Every batch of GLP-3 RT ships with a third-party COA verifying purity by HPLC (>=99%), identity by mass spectrometry, and lyophilized mass. The batch-specific COA is published on this product page before purchase.
Lyophilized GLP-3 RT is stored at -20C for long-term storage and 2-8C for short-term use within 30 days. Avoid repeated freeze-thaw cycles. Store in original sealed vials, protected from light.
Retatrutide remains in clinical development as of 2026 and is not yet FDA-approved. The GLP-3 RT supplied here is for laboratory and research use only, and is not approved for diagnostic, therapeutic, or human use.