≥98% HPLC PurityThird-Party TestedCOA per BatchCold-Chain Ship
About this compound
Retatrutide is a synthetic 39-amino acid peptide and an investigational triple-receptor agonist targeting the GLP-1, GIP, and glucagon receptors simultaneously, making it one of the most pharmacologically novel research peptides in the metabolic research space.
The addition of glucagon-receptor activity to the dual-incretin mechanism (already represented by compounds such as tirzepatide) is hypothesized in the literature to extend the molecule's effects on hepatic lipid handling and energy expenditure beyond what is observed with GLP-1/GIP co-agonism alone. Retatrutide is being studied in metabolic, adipose, and hepatic research models.
Supplied as a sterile lyophilized powder. Reconstitute with bacteriostatic water for in vitro laboratory use only. Not for human or veterinary administration.
Specifications
Molecular Formula
C₂₅₂H₃₈₂N₅₆O₇₆
Molecular Weight
5302.3 g/mol
CAS Number
2381089-83-2
Receptor Targets
GLP-1R + GIPR + GCGR (triple agonist)
Purity
≥98% (HPLC)
Form
Lyophilized white powder
Storage (unopened)
-20°C, protected from light
Storage (reconstituted)
2-8°C, use within 30 days
Vial Sizes
10 mg
Reconstitution & storage
Add 2 mL of bacteriostatic water to the 10 mg vial for a 5 mg/mL working concentration. Swirl gently. Refrigerate (2-8°C) once reconstituted and use within 30 days.
Selected research references
Jastreboff AM et al. "Triple-Hormone-Receptor Agonist Retatrutide for Obesity: A Phase 2 Trial." N Engl J Med. 2023;389(6):514-526.
Coskun T et al. "LY3437943, a novel triple glucagon, GIP, and GLP-1 receptor agonist for glycemic control and weight loss." Cell Metab. 2022;34(9):1234-1247.
Rosenstock J et al. "Retatrutide once weekly for type 2 diabetes: a phase 2 trial." Lancet. 2023;402(10401):529-544.
References listed for research-context only. Norway Peptides does not endorse, sponsor, or financially benefit from any cited work. Researchers should consult primary sources directly.
Effective May 1, 2026
These Terms of Sale govern all purchases of products from Norway Peptides ("Norway Peptides," "we," "us," or "our"). By placing an order through this website or any affiliated channel, you ("Buyer") agree to be bound by these Terms.
1. Eligibility and Buyer Representation
Norway Peptides sells exclusively to qualified research professionals and institutions for laboratory research and educational use. By placing an order, Buyer represents and warrants that Buyer is at least 21 years of age, is a qualified researcher or authorized representative of a research institution, and will use the products solely for in vitro laboratory research. Norway Peptides reserves the right to refuse or cancel any order at its sole discretion.
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Due to the temperature-sensitive nature of research peptides, returns are not accepted once a vial has left our facility. Replacement may be offered, at Norway Peptides' sole discretion, in the event of (a) verifiable shipping damage reported within seven (7) days of delivery with photographic documentation, or (b) product failing to meet specifications stated on the lot Certificate of Analysis, when reported within thirty (30) days of delivery and supported by independent laboratory analysis.
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Effective May 1, 2026
This Research Use Policy describes the conditions under which Norway Peptides supplies research-grade peptides and related compounds (collectively, "Products"). By purchasing, receiving, or using any Product, Buyer agrees to comply with this Policy in addition to our Terms of Sale.
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Buyer is at least 21 years of age
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Effective May 1, 2026
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