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For in vitro research use only. Not for human or animal consumption.

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Research blends

RETA/CAG

RETA/CAG is a dual-peptide research blend of retatrutide and cagrilintide in a single lyophilised presentation — not a dual-strength GLP-3 RT kit. As a composite material it has no single CAS number. VaultLabs supplies RETA/CAG for in vitro laboratory research only.

Research use only. For in vitro research use only. Not for human or animal consumption. Not for human consumption, medical use, or personal application.

Reviewed by VaultLabs Research Editorial Desk · Last updated 2026-08-04

Key facts

  • Two named components: retatrutide (12.5 mg) and cagrilintide (2.5 mg) in a 15 mg total fill.
  • No single CAS registry number — publishing one would misrepresent the blend.
  • Independent lots from GLP-3 RT 10mg and 20mg single-sequence SKUs.
  • Cagrilintide appears in amylin-pathway metabolic research literature as a separate substance.
  • Not for human or veterinary use.
Composition
Retatrutide 12.5 mg + cagrilintide 2.5 mg
CAS number
Not applicable — composite material
Appearance
White to off-white lyophilised blend
Catalog strength
15 mg total fill

What RETA/CAG is

RETA/CAG is a formulated blend of retatrutide and cagrilintide, not a single compound and not a two-strength GLP-3 RT pack. The components are presented together for laboratories studying multi-component documentation and handling workflows.

A blend has no single CAS number and no single purity figure that meaningfully describes both components. Certificate review should address identity and ratio questions.

Never share COAs with GLP-3 RT 10mg or 20mg — those are single-sequence retatrutide SKUs with separate lots.

Where the research literature sits

Cagrilintide has been studied as a long-acting amylin analogue in weight-management research, including combination protocols with semaglutide in clinical literature describing pharmaceutical products.

Retatrutide literature is summarised on the Retatrutide encyclopedia page. Combining those literatures does not create a clinical claim for this research blend.

Analytical characterisation and handling

Blend COAs should let you connect each named component to analytical evidence where testing was performed. A single main-peak figure is not sufficient characterisation of a two-component mixture.

Store sealed at 2–8 °C. RETA/CAG is not an approved medicine and is not for human use.

Regulatory position and supply

Supplied strictly for in vitro laboratory research against a research-use declaration. The catalog presentation is a 15 mg lyophilised blend vial.

Laboratory documentation practice

Blend procurement simplifies inventory for laboratories that deliberately study multi-component materials, but it complicates certificate reading. Ask whether both named components are identified and whether the reported ratio matches the label before releasing the vial into experimental use.

Cagrilintide-class material brings amylin-pathway literature into the same vial as retatrutide-class material. That combination is a documentation choice by the catalog, not a claim that the published single-agent literatures apply unchanged to the mixture.

If a study later needs unambiguous single-substance evidence, order GLP-3 RT 10mg or 20mg separately rather than attempting to reinterpret a blend certificate as a single-component release.

How this page should be read

This monograph is a reference article for laboratory purchasers and documentation staff. It summarises chemical identity, literature context and handling constraints that affect analytical work. It is not a protocol, not a dosing guide and not a substitute for institutional SOP review.

Where pharmaceutical or clinical papers are cited, they are included only to anchor compound identity and regulatory status. They do not authorise human use of VaultLabs research material, and they do not convert a lyophilised reference vial into a finished medicine.

If a certificate, label and monograph appear to disagree, stop and query support with the lot number before the material enters an experiment. Lot-linked certificates override general catalog copy for the specific unit in hand.

VaultLabs updates monographs when catalog strengths or documentation practice change. The updatedAt field marks the editorial revision date for this article, not the manufacture date of any particular lot.

All VaultLabs materials named here remain research-use-only: not for human consumption, not for medical use, and not for personal application under any reading of the surrounding literature.

Research interest areas

Multi-component incretin / amylin-pathway documentation

Blend identity and ratio analytics

Comparative single-vs-blend handling workflows

Storage information

2–8 °C (lyophilized, sealed)

2–8 °C sealed; follow product page and batch COA notes.

Stability notes

Blend materials inherit the strictest handling constraints of either component — gentle reconstitution and sealed cold storage.

Selected literature

Named papers behind the statements on this page. Each entry resolves on PubMed and through its DOI, so you can read the source rather than take our summary of it. Inclusion describes the research record and is not a claim about this material’s suitability for any use.

  1. Once-weekly cagrilintide for weight management in people with overweight and obesity: a multicentre, randomised, double-blind, placebo-controlled and active-controlled, dose-finding phase 2 trial

    Lau DCW, et al. · The Lancet · 2021

    Primary clinical characterisation of cagrilintide as a long-acting amylin analogue — identity context for the CAG component.

    PubMed 34798060doi:10.1016/S0140-6736(21)01751-7

  2. Efficacy and safety of co-administered once-weekly cagrilintide 2·4 mg with once-weekly semaglutide 2·4 mg in type 2 diabetes: a multicentre, randomised, double-blind, active-controlled, phase 2 trial

    Frias JP, et al. · The Lancet · 2023

    Combination literature illustrating why dual-component metabolic materials require component-aware documentation.

    PubMed 37364590doi:10.1016/S0140-6736(23)01163-7

Databases and verification

Registry and database entries for independent identity checks. These are standing searches rather than fixed records, so they stay current as new work is indexed.

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