Research use only. All compounds are for in vitro laboratory research. Not for human consumption. Not FDA approved.
Retatrutide research peptide vial
HPLC Verified
>99% Purity
COA Included
Growth Hormone Secretagogues

Retatrutide (5mg)

$189.99
Retatrutide — GIP/GLP-1/glucagon triple receptor agonist studied for metabolic regulation, glucose homeostasis and body composition research. >99% HPLC purity. Research use only.
Format Lyophilized powder
Purity >99% HPLC verified
Storage Lyophilized: -20°C
CAS Number
Also available: Gonadorelin →
In Stock — 2–5 day domestic delivery
HPLC Verified
>99% Purity
📄 COA Included
For Research Use Only (RUO)
Not for human consumption. Not intended to diagnose, treat, cure, or prevent any disease. For in vitro and laboratory research purposes only.
Retatrutide (5mg) $189.99

Product Information

Why Buy Retatrutide from Official Peptides

Official Peptides stocks research-grade Retatrutide with verified purity and independent third-party documentation. As one of the newest GLP-1/GIP/glucagon triple receptor agonists under active research, Retatrutide availability is limited — Official Peptides maintains consistent stock with US-based fulfillment and same-day dispatch on qualifying orders.

Retatrutide Research Profile

Retatrutide (LY3437943) is a synthetic triple agonist targeting the glucagon-like peptide-1 receptor (GLP-1R), glucose-dependent insulinotropic polypeptide receptor (GIPR), and glucagon receptor (GCGR). This tri-agonist profile distinguishes it from dual agonists like Tirzepatide. Preclinical and Phase II clinical research has examined Retatrutide for its pronounced effects on body weight reduction, glycemic control, and metabolic parameters. Phase III trials are currently underway. For research use only in non-approved contexts.

Product Specifications

  • Purity: ≥99% (HPLC verified)
  • Format: Lyophilized powder
  • Quantity: 5mg per vial
  • Storage: Refrigerate at 2-8°C; protect from light and moisture
  • Shipping: USPS Priority Mail with cold pack; ships within 1 business day

Frequently Asked Questions

Q: How does Retatrutide differ from Tirzepatide in research?
A: Tirzepatide is a dual GLP-1R/GIPR agonist, while Retatrutide adds glucagon receptor agonism as a third target. The glucagon component may contribute to greater energy expenditure and enhanced fat oxidation, which may explain the larger weight reduction signals observed in early Retatrutide clinical trials compared to dual agonists.

Q: What has Phase II research shown about Retatrutide?
A: Phase II trial data published in 2023 showed Retatrutide-treated subjects achieving mean weight reductions of 17-24% at 48 weeks across dose groups, which represents some of the highest weight reduction signals observed in a pharmacological obesity intervention at that time. Phase III trials are ongoing.

Q: Is Retatrutide available in consistent supply at Official Peptides?
A: Yes. Official Peptides maintains stock of Retatrutide and ships within one business day of order placement. Notify our team if you require large quantities for extended research protocols, and we can confirm availability in advance.

Order Retatrutide Online

Order research-grade Retatrutide from Official Peptides. Secure checkout, cold-pack US shipping, and quality documentation included. Free shipping on orders over $150. Add to cart now.

For Research Use Only. This compound is intended strictly for in vitro laboratory research by qualified scientists. Not for human consumption. Not FDA approved. Keep out of reach of children.

Third-Party Verified

Every Order Ships with a Certificate of Analysis

We don't just claim purity — we prove it. Every batch of Retatrutide (5mg) is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.

HPLC purity analysis — minimum threshold >99%
Mass spectrometry — molecular weight confirmation
Lot number traceable to your order
Endotoxin limits verified — safe for cell-based assays
View Sample COA & Testing Process
Official Peptides Labs Certificate of Analysis
ProductRetatrutide (5mg)
Lot #OP-2025-8685
HPLC Purity>99.0%99.2%PASS
Mass Spec (MW)ConfirmedConfirmedPASS
Endotoxin<1 EU/mg<0.5 EU/mgPASS

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