Retatrutide (GLP-3 RT), 10mg & 20mg

Retatrutide research peptide: product overview

This product is listed as GLP-3 RT Retatrutide and is available from PNW Peptides in 10mg and 20mg labeled vial sizes, supplied as lyophilized powder for laboratory research. Select the required size using the options above. The size identifies the labeled quantity per vial; it should be distinguished from the quantity measured in an individual analytical sample. The published testing information below relates to a tested 10mg sample.

This page brings together the product format, available sizes, analytical results, and supporting resources so researchers can review the material before ordering. When documenting a purchase for laboratory work, retain the product identification, selected size, and applicable analytical report alongside your laboratory records.

Research background

Retatrutide is described in the scientific literature as an agonist at three hormone receptors: glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide-1 (GLP-1), and glucagon. This receptor profile is the basis for its description as a triple hormone receptor agonist. Researchers interested in this area examine how these signaling pathways relate to metabolic regulation.

For primary scientific context, see Jastreboff and colleagues’ 2023 research publication. Published research concerns the materials and methods used in that study. It does not establish that a separately supplied research vial is equivalent to clinical study material or suitable for administration. This listing provides a laboratory research product, not treatment advice or a promise of clinical results.

Certificate of analysis: tested 10mg sample

The existing certificate covers a tested 10mg sample. A separate certificate for the 20mg size is not currently published. The figures in this table describe the reported sample and should not be read as separate test results for both available sizes.

View tested 10mg COA (PDF)

Review the reported analytical summary in our certificate of analysis archive. Use lab reference 2606230154 to identify the report when asking about these results.

Understanding the reported results

Chromatographic purity, identity confirmation, and quantity found answer different questions. The reported purity of 99.86% describes the chromatographic result for the tested sample. It is not a statement that every possible impurity or contaminant has been excluded. The confirmed mass spectral match provides analytical evidence supporting identity. The quantity found, 11.54mg, is the measured amount reported for that sample rather than the nominal size selected when ordering.

Read these results together and consult the original report for its methods and scope. A purity percentage alone does not establish sterility, suitability for a particular experiment, or suitability for human use. Our guide to reading certificates of analysis and HPLC purity testing explains the distinction between these measurements.

Product specifications

• Product: Retatrutide research peptide.
• Available labeled sizes: 10mg and 20mg per vial.
• Physical form: lyophilized, or freeze-dried, powder.
• Intended purpose: laboratory research only.
• Published analytical documentation: the tested 10mg sample identified above.

Laboratory handling and documentation

Review handling requirements before opening or preparing the material. Storage conditions, solvent selection, and the useful lifetime of a prepared solution should follow applicable supplier documentation and your laboratory’s validated procedures. A general product description should not replace a protocol developed for your specific work. Contact us if you need clarification about available documentation before proceeding.

Our laboratory reconstitution guide provides supporting information. Keep preparation and storage records with the sample identification so the material used in an experiment can be traced to its documentation.

Common product questions

Does the posted certificate cover the 20mg option?

No separate 20mg certificate is currently published. The existing report is presented specifically for the tested 10mg sample; selecting a different size does not change the scope of that report.

Where can I ask about the product or its report?

Use our contact page and include the product name, vial size, and lab reference where relevant. This helps identify which material or document your question concerns.

Who is this product intended for?

Qualified researchers, laboratories, and institutions conducting legitimate scientific research. It is not intended for human or veterinary use, consumption, diagnosis, or treatment. Review our research-use-only disclaimer and terms and conditions before ordering.