Retatrutide Auto-Injection Pen Cartridge — 3cc Prefilled & Sterile
The Retatrutide pen cartridge from MyGLP1Store is a 3cc prefilled, sterile cartridge preloaded with research-grade Retatrutide (RETA), engineered to seat directly into the V3 Auto-Injection Pen. No reconstitution, no vial transfers, no measuring — a ready-to-use retatrutide auto injector cartridge for streamlined, repeatable laboratory research workflows. Third-party COA-verified, documented >99% purity, same-day U.S. shipping. For laboratory research use only.
Why a Prefilled Retatrutide Pen?
- Prefilled & sterile: ships ready-to-use in a sealed 3cc cartridge — no reconstitution or bacteriostatic-water step.
- V3 pen compatible: drops straight into the V3 auto-injection pen for precise, repeatable research dosing.
- Single-compound fill: preloaded with research-grade Retatrutide only — no blends, carriers, or added compounds.
- COA-verified: third-party verified identity, purity, and concentration, with a published Certificate of Analysis.
What Is Retatrutide?
Retatrutide (research code LY3437943) is a long-acting synthetic “triple agonist” studied at three distinct hormonal receptors — the GLP-1 receptor, the GIP receptor, and the glucagon receptor (GCGR). This multi-pathway receptor affinity makes Retatrutide a leading focus in metabolic and endocrine signaling research. In the prefilled cartridge format, it is supplied as a sterile solution for use with the V3 auto-injection pen.
Specifications
- Format: 3cc prefilled auto-injection cartridge
- Contents: Retatrutide (RETA)
- Sterility: Sterile-filled, sealed, shipped prefilled
- Compatibility: V3 Auto-Injection Pen (required — sold separately, not included)
- Purity: ≥99% (HPLC & MS verified)
- Use: Laboratory research use only
Storage & Handling
Store refrigerated at 2–8°C, protected from light. Do not freeze prefilled cartridges. Keep sealed until use in a controlled laboratory setting. For laboratory research use only — not for human or veterinary consumption.
Available Sizes & Weekly Preload
Each Retatrutide auto-injection cartridge is prefilled as an approximate 4-week preload at the listed weekly research amount. Select your size at checkout:
| Cartridge Size | Weekly Amount | Approx. Duration |
|---|---|---|
| 10 mg | 2.5 mg / week | ~4 weeks |
| 20 mg | 5 mg / week | ~4 weeks |
| 30 mg | 7.5 mg / week | ~4 weeks |
| 40 mg | 10 mg / week | ~4 weeks |
| 48 mg | 12 mg / week | ~4 weeks |
Related Research Products
Complete your prefilled research setup:
- V3 Auto-Injection Pen Kit — reusable pen and travel case this cartridge is built for.
- Buy Retatrutide (RETA) vial — lyophilized Retatrutide research peptide.
- Tirzepatide (TIRZ) cartridge & vial — dual GIP/GLP-1 research peptide.
- Semaglutide (SEMA) cartridge & vial — GLP-1 receptor agonist research peptide.
| Size | 10mg (2.5mg/week), 20mg (5mg/week), 30mg (7.5mg/week), 40mg (10mg/week), 48mg (12mg/week) |
|---|
Reconstitution & Research Reference
Every order ships with free bacteriostatic water for reconstitution. Typical laboratory workflow: reconstitute the lyophilized peptide with bacteriostatic water, calculate the concentration per vial, and store according to the product storage guidance.
Open the Reconstitution Calculator
View third-party lab results (ADS/MSDS) · About the free bacteriostatic water
For laboratory research use only. Not for human consumption.
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