Triple agonist · GIP / GLP-1 / Glucagon

Retatrutide

Research peptide · Lyophilized vial 5, 15 & 30 mg · 99% HPLC purity

The most advanced triple agonist in metabolic research: it simultaneously activates three receptors central to appetite and energy expenditure.

Weight lossTriple agonist

Retatrutide (LY3437943) is a triple agonist of the GIP, GLP-1, and glucagon receptors. This combined action modulates satiety, glucose-dependent insulin secretion, and energy expenditure, and is why it is being studied as the next generation of incretin molecules relative to single and dual agonists.

Research objectives
99% purity (HPLC)
Per-batch HPLC analysis · certificate published
Lyophilized vial for reconstitution
Refrigerate · protect from light
Ships via DHL or FedEx
Size (dose)
Quantity
$90
$90 each · 5 mg
Add 2 more and get 10% volume discount.
Sold for research use only (RUO). Not for human or veterinary use.

Benefits studied in research

  • Studied for its effect on body-weight reduction, with mean decreases of up to ~17.5% at 24 weeks in a phase 2 trial in adults with obesity.
  • Investigated for its dose-dependent action, reaching weight reductions of ≥15% in a high proportion of participants at 48 weeks.
  • Evaluated for its effect on the reduction of hepatic fat content in a phase 2a trial in metabolic steatosis (MASLD).
  • Analyzed for its impact on glycemic and lipid parameters in the context of experimental metabolic control.

Key data

Class
Peptide triple agonist
Targets
GIP · GLP-1 · Glucagon
Status
Phase 3 (clinical research)
Weight reduction under study
Up to ~24% at 48 wks (phase 2)
Storage
−20 °C lyophilized · 4 °C reconstituted

Scientific backing

Peer-reviewed publications on the molecule. Research references, not indications for use.

Triple-Hormone-Receptor Agonist Retatrutide for Obesity — A Phase 2 Trial
New England Journal of Medicine · 2023 · Jastreboff AM, Kaplan LM, Frías JP, et al.
View publication
Triple hormone receptor agonist retatrutide for metabolic dysfunction-associated steatotic liver disease: a randomized phase 2a trial
Nature Medicine · 2024 · Sanyal AJ, Kaplan LM, Frías JP, et al.
View publication

Reconstitution calculator

Adjust the values to plan your protocol. The vial's mg sync with the size you select above.

Syringe
10 mg/ml
10,000 mcg/ml
Concentration
5 U
In the syringe (U-100)
0.05 ml
Volume per dose
10
Doses per vial
0100 U

The link opens the calculator with these same values.

Calculation tool for laboratory planning (RUO). An insulin U-100 syringe has 100 units = 1 ml. Laboratory reference, not medical advice.

Frequently asked questions

Beyond the GLP-1 receptor, it also activates GIP and glucagon. In research, this triple action is associated with greater energy expenditure and weight reductions higher than those observed with single or dual agonists.

These are the sizes most commonly used in escalating-dose research protocols. The vial amount does not represent a dosing recommendation.

Laboratory analysis

Certificate for this batch

Analyzed by Vanguard Laboratory · Olympia, Washington, EE. UU.
ISO/IEC 17025:2017 · A2LA 6377.01
>99.80%± 0.18%
Chromatographic purity (HPLC-UV/VIS)
TestResult
Chromatographic purity · HPLC-UV/VIS>99.80% ± 0.18%
Vial content · HPLC-UV/VIS5.61 mg (labeled 5 mg)
Batch
Purple Cap
Report date
Jul 6, 2026
Laboratory ID
V260616-7 · 001
Presentation
5 mg
View full certificate

On the certificate, Retatrutide appears under its laboratory code GLP-3 R. The chromatogram labels the peak as Retatrutide.

This report covers purity and content. It does not include endotoxin or sterility testing; ask us over WhatsApp whether they are available for the current batch.

Certificate for the batch current at the time of publication. If your vial shows a different batch, ask us for its certificate over WhatsApp. The laboratory states that it did not take part in sample selection and that results relate only to the portion tested. Endotoxin thresholds quoted in the report are the USP/FDA criteria of the method; our materials are for research use only (RUO), not for human or veterinary use. Accreditation verifiable in the public A2LA directory.

Reference protocol

Reference protocol

Doses, syringe units and cycle for this vial, precalculated for our formats.

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