Standard 3 ml glass
Glass Cartridges, 10-Pack
3 ml borosilicate glass, fits every AminoPen
$1.00 per fill
The refill that keeps your pen a pen.
Ten 3 ml cartridges in borosilicate glass, the lab-standard stuff that shrugs off temperature swings and doesn’t leach. One cartridge fits the Pro, the Go, and whatever we make next. Load, click, done.
| Material | Borosilicate glass |
| Volume | 3 ml |
| Seal | Crimp-sealed |
| Count | 10 per box |
- Ships free over $85 · from the USA in 24 to 72 hours
- Discreet, unmarked box
- For laboratory research use only
- 30-day returns on unopened items
Fits every AminoPen.
- SPEC.01Material
- Borosilicate glass — the lab-standard stuff that shrugs off temperature swings and doesn’t leach.
- SPEC.02Volume
- 3 ml per cartridge, about 250 units per fill.
- SPEC.03Fit
- Fits every AminoPen — the Pro, the Go, and whatever we make next.
- SPEC.04Pack
- 10 crimp-sealed cartridges per box.
- SPEC.05Thread
- Standard thread, drops straight into the pen body — no proprietary format to source.
Drops straight in.
Standard 3 ml borosilicate glass for the AminoPen Pro and Go. Refill in seconds — no proprietary formats, no throwaway plastic.
Included: 10 x 3 ml borosilicate glass cartridges.
Drop in
Each cartridge is standard 3 ml borosilicate glass. It drops straight into the aluminum body — no proprietary format to source.
Fill
One cartridge holds about 250 units per fill, then the pen meters the dose from there.
Swap
When the glass runs out, replace it instead of the whole pen — 10 cartridges per box.
The pens it runs in.

AminoPen Pro
The reusable one. Aluminum body, click-stop dial to 60 units, refill and keep going.
$29.99 View details
AminoPen Go
The second pen in the system. It loads the same 3 ml glass, and the same tips fit both.
$14.99 View details
Pen Tips
Standard 32G × 4 mm tips that fit both pens. State shipping rules apply.
$24.99 View detailsQuestions
Good to know.
Which pens do these fit?
Both the AminoPen Pro and the Go load the same standard 3 ml borosilicate glass — one glass format across the whole system.
Is shipping discreet?
Yes — every order ships in a plain, unmarked box, dispatched from the USA, typically within 24–72 hours.
Is this for medical use?
No. AminoPen is supplied strictly for research use only. We describe the instrument and its specifications — we don’t make medical, dosing, or therapeutic claims.