24 Hour Shipping | Free Shipping over $150
Every lot third-party tested · COA matched to your vial View all products
Catalog / Metabolic / GLP 3 (RT)
Metabolic Peptide

GLP 3 (RT) 10 & 30mg

Triple GLP-1/GIP/Glucagon Receptor Agonist · LY3437943

Retatrutide (GLP-3) is an investigational synthetic peptide and first-in-class triple hormone receptor agonist that activates GIP, GLP-1, and glucagon receptors. Also known as LY3437943, it is an acylated peptide studied for its effects on metabolic signaling, glucose regulation, energy balance, lipid metabolism, and body-weight regulation. Current research includes metabolic, endocrinology, obesity, diabetes, and cardiometabolic research.

Size
Shipping protection 30-day money back 24-hour dispatch

Certificate of Analysis

Retatrutide 10 mg · cross-verified by 2 independent laboratories · matched to the ID printed on your vial
Freedom Diagnostics
LOT SD-260728-1
Flagship panel
99.87%
HPLC-UV purity · meets spec
Labeled10 mg
Net content11.28 mg
Identity (LC-MS)Retatrutide confirmed
AppearanceWhite lyophilized powder
Heavy metalsNot Detected
Tested22 Aug 2026
Verification keyKYLO2608170152
5 assays passed · ISO/IEC 17025 accredited
View certificate
Vanguard Laboratory
LAB ID V260814-13 001
Flagship panel
>99.80%
HPLC-UV/VIS purity · ±0.18%
Labeled10 mg
Quantity10.06 mg
IdentityMatches reference standard
Lot numberWhite Cap
Heavy metalsNot Detected
Tested20 Aug 2026
AccreditationA2LA #6377.01.01
Verification keyV260814-13 001
4 assays passed · ISO/IEC 17025 accredited
View certificate

Compound information

Chemical & structural properties
What it is

What is GLP-3 (RT)?

The next step beyond single- and dual-receptor peptides: one molecule that activates three metabolic receptors at once. Adding glucagon-receptor signaling to the GLP-1 and GIP pair, it gives researchers a single tool for studying how all three incretin and glucagon pathways interact.

Triple GLP-1/GIP/glucagon agonistResearch gradeLyophilized
ClassTriple GLP-1/GIP/glucagon receptor agonist
OriginSynthetic GIP-based analog
FormLyophilized powder
UseResearch use only
Molecular profile

GLP-3 (RT) structure

TypeSynthetic triple incretin/glucagon agonist
CAS Number2381089-83-2
Molecular Weight4731.33 g/mol
Amino Acids39
FormulaC221H342N46O68
Development codeLY3437943
PubChem Database · CID 171390338
Storage requirements

Stability information

Store coldProtect from lightHygroscopic
Lyophilized (powder)
−20 °C · stable
Reconstituted
2–8 °C · short-term
Overview

Product overview

A first-in-class triple receptor agonist supplied for laboratory evaluation at a ≥99% HPLC analytical standard.

Technical overview

Retatrutide or GLP-3 (RT) is a 39-amino-acid peptide built on a glucagon-based scaffold and modified so that a single molecule activates the GLP-1, GIP, and glucagon receptors simultaneously. Non-coded residues at positions 2, 13, and 20 support stability and receptor balance, while a C20 fatty diacid chain enables albumin binding for a longer half-life.

It is made by solid-phase synthesis and preparative purification, then released against a lot-matched Certificate of Analysis carrying HPLC purity and LC-MS identity.

Research applications

Researchers use Retatrutide to probe how glucagon-receptor activity layers onto incretin signaling that GLP-1 (Sema) and GLP-2 (Tirz) cannot reach. Typical work spans cAMP reporter assays of GCGR, GIPR, and GLP-1R in HEK293 cells, hepatic lipid metabolism and thermogenesis models, and rodent studies measuring energy expenditure alongside food intake.

For Research Use Only · Not for human or veterinary use

Kylo Peptides supplies this compound as a reference material for scientific inquiry. All applications must be conducted by qualified professionals in controlled laboratory environments. It has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease.

FAQ

Frequently Asked Questions

The third target is the glucagon receptor. Adding it to GLP-1 and GIP activation lets a single molecule influence appetite, insulin release, and, through glucagon signaling, hepatic fat metabolism and energy expenditure. That combination is what researchers use GLP-3 (RT) to study, since no dual agonist reaches the glucagon pathway.

Kylo GLP-3 (RT) is supplied at ≥99% purity by HPLC, with identity confirmed through LC-MS. Each lot clears independent third-party testing before it is released, and the corresponding certificate is published against the lot number printed on the vial.

GLP-3 (RT) is registered under CAS number 2381089-83-2 and the development code LY3437943. It carries the molecular formula C221H342N46O68, a molecular weight of roughly 4731.33 g/mol, and a 39-amino-acid chain.

Hold the lyophilized powder at −20 °C, sealed away from light and moisture, with −80 °C preferred for longer storage. The peptide is hygroscopic, so keep its time in open air short. After reconstitution, refrigerate at 2 to 8 °C and use within a validated stability window.

No. Kylo GLP-3 (RT) is intended solely for in vitro laboratory research. It is not formulated or labeled for humans or animals, and unlike GLP-1 (Sema) or GLP-2 (Tirz), it has no approved brand-name product, since it remains investigational.

Retatrutide is an investigational Eli Lilly compound still in clinical trials, and it has not received FDA approval for any use. The material sold here is research-grade, supplied for laboratory work only. Kylo is a chemical supplier, not a compounding pharmacy under section 503A or 503B.

Backed By A Lot-Matched COA

Every GLP-3 (RT) order is tied to a certificate of analysis matched to the exact lot in your vial.

Shop catalog →