For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

GLP-1 / Metabolic

Retatrutide

Also known as: Retatrutide (LY3437943 — GLP-1/GIP/Glucagon triple agonist)

Retatrutide (Eli Lilly code LY3437943) is an investigational triple-receptor agonist simultaneously targeting GLP-1, GIP, and glucagon receptors. It is research-only and NOT FDA-approved as of April 2026; the Phase 3 TRIUMPH program is ongoing with anticipated NDA filing in 2026. Published Phase 2 data showed roughly 24% mean body weight loss at 48 weeks on 12 mg weekly (Jastreboff, NEJM 2023).

Real-time market data

Pricing for Retatrutide

Live vendor pricing, normalized to $/mg so sizes compare fairly — fused with each seller's Merit trust score and latest independent COA purity. Prices refresh daily.

Independent evidence

COAs for Retatrutide

256 third-party tests across 37 vendors. Each card links to the full report.

All 256 COAs for Retatrutide →
Measured purity 98.5%–100.0% across 121 COAs
Measured purity over time
Aggregated · 3rd-party listing
99.53 %
May 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Prime Peptides· batch 4032026RT

Aggregated · 3rd-party listing
99.20 %
May 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Prime Peptides· batch 3302026RT

Aggregated · 3rd-party listing
98.49 %
May 2026
ILS Labs

For

Retatrutide

by Ion Peptide· batch IONR10-05042026

Aggregated · 3rd-party listing
99.62 %
May 2026
ILS Labs

For

Retatrutide

by Ion Peptide· batch ION3R30-05042026

Aggregated · 3rd-party listing
99.97 %
May 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Skye Peptides· batch RET26-12-004

Aggregated · 3rd-party listing
99.85 %
May 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Skye Peptides· batch RET26-24-003

Aggregated · 3rd-party listing
99.63 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Skye Peptides· batch RET26-12-003

Aggregated · 3rd-party listing
99.80 %
Apr 2026
Bioviridian · HPLC

For

Retatrutide

by Prime Peptides· batch 3202026RT

Aggregated · 3rd-party listing
99.80 %
Apr 2026
Bioviridian · HPLC

For

Retatrutide

by Prime Peptides· batch 3172026RT

Aggregated · 3rd-party listing
99.53 %
Apr 2026
Janoshik Analytical

For

Retatrutide

by Reta Peptide· batch 20260409

Aggregated · 3rd-party listing
99.30 %
Apr 2026
ILS Labs

For

Retatrutide

by NG Peptide· batch RT10-0429

Aggregated · 3rd-party listing
99.94 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by MJT peptides· batch cmojgqr2x00089grxxqeujfbs

Aggregated · 3rd-party listing
99.90 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Skye Peptides· batch RET26-12-002

Aggregated · 3rd-party listing
99.82 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Hkuppeptide· batch 2026

Aggregated · 3rd-party listing
99.82 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Peptiatlas· batch 2026

Aggregated · 3rd-party listing
99.82 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Taikangbio· batch 2026

Aggregated · 3rd-party listing
99.82 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Taishijie· batch 2026

Aggregated · 3rd-party listing
99.82 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Vicopeptide· batch 2026

Aggregated · 3rd-party listing
99.82 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Zjpeptix· batch 2026

Aggregated · 3rd-party listing
99.78 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Peptidegurus· batch cmojgr961002x9grxpliok88f

Aggregated · 3rd-party listing
99.22 %
Apr 2026
Janoshik Analytical · HPLC

For

Retatrutide

by Peptidegurus· batch cmojgr3th00249grxwp4haq8g

Aggregated · 3rd-party listing
99.00 %
Apr 2026
Ethos Analytics · HPLC

For

Retatrutide

by OROS Research· batch OR-LPGLPR10-326-B2

Aggregated · 3rd-party listing
99.89 %
Apr 2026
Freedom Diagnostics · HPLC

For

Retatrutide

by Blank Peptides· batch 665394

Aggregated · 3rd-party listing
99.61 %
Apr 2026
ILS Labs · HPLC

For

Retatrutide

by Crush Research· batch CR-3XAG14-2604-1

Research depth

33 citations indexed for Retatrutide

All research on Retatrutide →

Study · 2026

A Hydrophobic Tag-Assisted Liquid-Phase Strategy for the Synthesis of Retatrutide

Retatrutide is a novel triple agonist that targets the glucagon receptor (GCGR), the glucose-dependent insulinotropic polypeptide receptor (GIPR), and the glucagon-like peptide-1 receptor (GLP-1R).

Study · 2026

Retatrutide And Lipid And Metabolite Profiles In Participants With Obesity With Or Without Type 2 Diabetes

Context In phase 2 trials, retatrutide reduced body weight, hemoglobin A1c, and improved the lipid profiles of participants living with obesity, with and without T2D. Objective Assess plasma metabolome and lipidome changes associated with retatrutide treatment.

Study · 2026

Triple Hormone Receptor Agonism: The Role of Retatrutide in Addressing Cardiovascular-Kidney-Metabolic (CKM) Syndrome: A Comprehensive Review

Retatrutide is a first-in-class, unimolecular triple hormone receptor agonist targeting glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1, and glucagon receptors.

Study · 2026

Rationale, design and baseline characteristics of the TRANSCEND-CKD trial of retatrutide in patients with chronic kidney disease

Background and hypothesis Retatrutide is an agonist of the glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1 and glucagon receptors that reduced weight and hemoglobin A1c (HbA1c) in individuals with obesity and type 2 diabetes (T2D).

animal · 2026

Retatrutide Shows Multiple Metabolic Benefits in Diet-Induced Obese MASH Mouse and Hamster Models

Objective/methods Our aim was to evaluate the efficacy of the triple glucagon, GIP, and GLP-1 receptor agonist retatrutide in diet-induced obese MASH mouse and hamster models, two preclinical models that we routinely use for assessing new therapies targeting obesity.

meta-analysis · 2026

Comparative Efficacy and Safety of Glucagon Receptor Agonists on Metabolic Outcomes: A Network Meta-Analysis of Randomised Controlled Trials

Introduction Glucagon receptor agonists (GRAs) are an emerging class of therapies for obesity and type 2 diabetes, demonstrating encouraging metabolic and weight-reducing effects.