Fresno Peptide Lab
Triple agonist hitting GIP, GLP-1 and glucagon receptors — the most-studied of the next-generation metabolic compounds. 14mg and 28mg vials.
For research use only · not for human consumption
Orders are placed, processed, and shipped by ZestyRat Research. Fresno Peptide Lab does not stock or sell product — we may earn a commission at no extra cost to you.
GLP-3 is a novel investigational peptide that functions as a triple agonist, targeting the GLP-1 (glucagon-like peptide-1), GIP (glucose-dependent insulinotropic polypeptide), and glucagon receptors simultaneously. This multi-receptor activity is designed to enhance metabolic regulation by improving insulin sensitivity, reducing appetite, increasing energy expenditure, and promoting weight reduction.
In research settings, GLP-3 has been studied for its ability to deliver greater efficacy in weight management and glycemic control compared to single- or dual-agonist therapies. By engaging three distinct pathways, GLP-3 may provide synergistic benefits for metabolic health, making it a key focus in obesity and type 2 diabetes research.
Potential applications of GLP-3 peptide research include:
Summary of published preclinical and clinical literature, provided for research context only. Not a claim of efficacy and not medical advice.
Triple agonist hitting GIP, GLP-1 and glucagon receptors — the most-studied of the next-generation metabolic compounds. 14mg and 28mg vials.
ZestyRat Research supplies Retatrutide (GLP-3) as vial. Available options: 14mg vial at $135; 28mg vial at $190.
Yes. ZestyRat Research is our top-rated research supplier and provides a certificate of analysis on every batch. A COA reports identity by mass spectrometry and purity by HPLC — if you are not sure how to read one, our guide on reading a certificate of analysis walks through it line by line.
We track pricing, stock and documentation across the research-peptide market every week. ZestyRat is the supplier we point readers to first, and the one our own readers order from most. It is the only lab on our list that clears every one of our four checks at once.
Ratings on this page are our own editorial assessment, based on published COA practice, checkout and shipping experience, and price tracking. We earn a commission on orders placed through our links, at no extra cost to you. Research use only.
Fresno Peptide Lab is an independent research library. We do not manufacture, stock, price, test or ship anything. We review suppliers on their published testing standards, reputation, fulfilment record and pricing, and the ratings we publish are our own editorial assessment.
Every compound referenced on this site is sold by its vendor strictly as a research chemical for in-vitro laboratory research only — not for human or animal consumption, and not intended to diagnose, treat, cure or prevent any disease. Nothing here is medical advice. We earn a commission on orders placed through our links, at no additional cost to you; all material connections are disclosed in line with FTC guidelines.