Semaglutide Pen Cartridge — 3cc Prefilled & Sterile
The semaglutide pen cartridge from MyGLP1Store is a 3cc prefilled, sterile auto-injection cartridge preloaded with research-grade semaglutide and vitamin B12, engineered to seat directly into the V3 auto-injection pen. No reconstitution, no bacteriostatic-water step, no vial transfers and no measuring — a ready-to-use semaglutide auto-injector cartridge for streamlined, repeatable laboratory research workflows. Third-party tested, >99% purity, same-day US shipping.
Why a Prefilled Semaglutide Pen Cartridge?
- Prefilled and sterile: ships ready to use in a sealed 3cc cartridge — no reconstitution and no bacteriostatic water required.
- V3 pen compatible: drops straight into the V3 auto-injection pen for precise, repeatable research volumes.
- Semaglutide + B12: preloaded with research-grade semaglutide and vitamin B12 in one solution.
- Third-party tested: identity, purity and concentration verified by an independent laboratory before release.
- Same cost as the vial: each cartridge size is priced in line with the equivalent lyophilized semaglutide vial — nothing extra for the prefilled format.
What Is Semaglutide?
Semaglutide is a long-acting synthetic GLP-1 receptor agonist — one of the most widely studied compounds in glucose-dependent insulin signalling, satiety pathway and energy-balance research. In the prefilled cartridge format it is supplied as a sterile solution for the V3 auto-injection pen rather than as a lyophilized powder. For the powder format, see the semaglutide vial listing; for background on the compound, read the semaglutide research guide.
Available Sizes
Each semaglutide auto-injection cartridge is prefilled as an approximate four-week preload at the listed weekly research amount. Select your size above.
| Cartridge size | Weekly amount | Approx. duration |
|---|---|---|
| 1mg | 0.25mg / week | ~4 weeks |
| 2mg | 0.5mg / week | ~4 weeks |
| 4mg | 1mg / week | ~4 weeks |
| 6.8mg | 1.7mg / week | ~4 weeks |
| 9.6mg | 2.4mg / week | ~4 weeks |
Weekly amounts describe how the cartridge is preloaded for laboratory research workflows. They are not dosing recommendations.
Specifications
| Format | 3cc prefilled auto-injection cartridge |
| Contents | Semaglutide + vitamin B12, sterile solution |
| Sizes | 1mg, 2mg, 4mg, 6.8mg, 9.6mg |
| Sterility | Sterile-filled, sealed, shipped prefilled |
| Compatibility | V3 auto-injection pen |
| Purity | >99% (HPLC and MS verified) |
| Reconstitution | None required |
| Storage | Refrigerate at 2–8°C, protect from light, do not freeze |
| Use | Laboratory research use only |
Storage and Handling
Store prefilled cartridges refrigerated at 2–8°C (36–46°F) and protected from light. Do not freeze. Keep the cartridge sealed until it is loaded into the pen in a controlled laboratory setting. Because the solution is prefilled, no bacteriostatic water is used with this product.
Semaglutide Pen Cartridge vs Semaglutide Vial
| Prefilled pen cartridge | Lyophilized vial | |
|---|---|---|
| Format | Sterile solution in a sealed 3cc cartridge | Freeze-dried powder in a sealed vial |
| Preparation | None — load into the V3 pen | Reconstitute with bacteriostatic water |
| Measuring | Set on the pen | Drawn by syringe |
| Added B12 | Yes | No |
| Storage | Refrigerated, do not freeze | Refrigerated or frozen before reconstitution |
Frequently Asked Questions
What is a semaglutide pen cartridge?
A sealed 3cc cartridge prefilled with a sterile semaglutide and B12 solution, designed to load into a reusable V3 auto-injection pen. It replaces the vial, bacteriostatic water and syringe steps of the lyophilized format with a single ready-to-use cartridge.
Does the cartridge need to be reconstituted?
No. It ships prefilled with the solution already prepared. Nothing is added to it.
Which pen does it fit?
The V3 auto-injection pen. The cartridge is not designed for other pen models.
How is the cartridge stored?
Refrigerated at 2–8°C, protected from light, and never frozen. Keep it sealed until it is loaded into the pen.
Where can I buy a semaglutide pen cartridge?
Directly on this page — choose a size, add it to your cart, and it ships the same business day from the United States. For laboratory research use only.
Related Research Products
- V3 auto-injection pen kit — the reusable pen and travel case this cartridge is built for.
- Semaglutide vial — the lyophilized format, 5mg to 15mg.
- Retatrutide pen cartridge and tirzepatide pen cartridge — the other prefilled cartridges for the V3 pen.
| Size | 1mg (0.25mg/week), 2mg (0.5mg/week), 4mg (1mg/week), 6.8mg (1.7mg/week), 9.6mg (2.4mg/week) |
|---|
Reconstitution & Research Reference
Sourced direct from the manufacturer. No distributors, no repackaging, no middlemen. Produced in a GMP-aligned facility and tested to >99% HPLC purity before it ships — the same material, from the same production line, that supplies clinics and compounding pharmacies.
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
About the free bacteriostatic water
For laboratory research use only. Not for human consumption.
Read the BAC water concentration and storage guide · Buy additional BAC water for peptides
Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet.