V3 Auto-Injection Pen Kit — Precision Volumes, Anywhere
The V3 auto-injection pen kit is the reusable pen that Dr Jays Peptides’s retatrutide, tirzepatide and semaglutide 3cc prefilled cartridges are built for. Each kit includes two V3 click-dial pens with clear graduated cartridge chambers, precision dial adjustment, pen caps and a rigid magnetic-close travel case that keeps everything protected and organised in the lab or on the road.
In stock and ready to ship. Buy V3 Auto-Injection Pen Kit with Travel Case online from Dr Jays Peptides — third-party tested, with a certificate of analysis available on request. Order by 4:00 PM ET Monday–Friday or 12:00 PM ET Saturday and it ships the same day with tracking.
- Ships same day. Order by 4 PM ET Mon–Fri or 12 PM ET Sat. Choose Ground, 2-Day or Next Day at checkout.
- Free Next Day shipping on orders of $350 or more.
- Tested. Certificate of analysis available on request.
- Earn rewards — registered customers get loyalty points on every order.
What’s in the Kit
- 1 V3 reusable auto-injection pens with click-dial volume control
- Clear graduated cartridge chamber on each pen for visual confirmation of the loaded cartridge
- Protective magnetic-close hard travel case
- Pen caps for secure storage between uses
Why Researchers Choose the V3 Pen
- Precise: fine dial increments for repeatable, accurate volumes from a prefilled cartridge.
- Reusable: durable construction designed for long-term use — swap cartridges, keep the pen.
- Portable: the compact case fits in a bag, a drawer or a refrigerator door.
- Discreet: low-profile matte black design.
- No reconstitution: pair it with a prefilled 3cc cartridge and there is no bacteriostatic water, no syringe and no measuring by eye.
Compatible Cartridges
| Prefilled cartridge | Sizes |
|---|---|
| Retatrutide pen cartridge (retatrutide + B12) | 10mg, 20mg, 30mg, 40mg, 48mg |
| Tirzepatide pen cartridge (tirzepatide + B12) | 10mg, 20mg, 30mg, 50mg, 60mg |
| Semaglutide pen cartridge (semaglutide + B12) | 1mg, 2mg, 4mg, 6.8mg, 9.6mg |
All three cartridges are 3cc, sterile-filled and sealed, and seat directly into the V3 pen. Cartridges are sold separately.
Frequently Asked Questions
Which cartridges fit the V3 pen?
Dr Jays Peptides’s 3cc prefilled retatrutide, tirzepatide and semaglutide cartridges. The pen is designed for 3cc cartridges of this format.
Is the V3 pen reusable?
Yes. Load a cartridge, use it, and replace the cartridge when it is finished. The pen itself is designed for long-term use.
How many pens are in the kit?
Two, plus caps and the travel case — one for the bench and one for travel or backup.
Does the kit include a cartridge?
No. Cartridges are sold separately so you can choose the compound and size your research calls for.
For laboratory research use only — not for human or veterinary consumption.
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