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// Precision dosing hardware

Everything you need.
One box. Dial it in.

The Complete Recon Kit: a reusable precision pen, 10 sterile 3ml cartridges, reconstitution solution, needles, prep pads, and a case. Lab-grade hardware, shipped from the USA.

Get the Complete Kit
$59.99$87+ separately
✓ Sterile, sealed components✓ Ships in 24h from USA✓ Discreet packaging
COMPLETE RECON KIT AP 0.25 3ml 30ml 31G · 32G 50 × NEEDLES [ PRODUCT PHOTO COMING SOON ]

Shop the essentials

Four categories. Everything compatible with everything.

Two pens. One standard.

Both take standard 3ml cartridges and universal pen needles. Pick by feel, not by compatibility.

Which pen is right for me? →
NEWEST GEN

AminoPen Pro

The newest-generation dial. Machined body, click-stop precision — the pen no one else carries yet.

$26.99 · launch price
BodyMachined metal
Dose increments0.01ml per click
CartridgeStandard 3ml
NeedlesUniversal 31G/32G
View product

AminoPen Go

Same 3ml standard, same click precision, lighter on the wallet. The smart way to ditch single-use.

$17.99 · entry
BodyReinforced polymer
Dose increments0.01ml per click
CartridgeStandard 3ml
NeedlesUniversal 31G/32G
View product
// The hero bundle

Complete Recon Kit

  • AminoPen Pro (or Go) $26.99
  • 10× sterile 3ml cartridges $12.99
  • Reconstitution solution 10ml $12.99
  • 50× pen needles 31G $19.99
  • Prep pads + carry case $14.99
$59.99$87.95SAVE 32%
View the Complete Kit
NEEDLES [ KIT PHOTO COMING SOON ]

Prep your setup

How to fill, load, and prime the pen — from sealed components to a ready setup in minutes. Preparation guidance only; for research and laboratory use.

Full prep guide + tip-size chart →
[ PREP VIDEO COMING SOON ]
1

Transfer your solution. Once prepared, use a sterile syringe to transfer the liquid into a 3ml cartridge through the septum. Wipe surfaces with a prep pad first.

2

Load the cartridge. Unscrew the pen, seat the cartridge, screw it back. It clicks home.

3

Attach a tip. Universal pen needles, 31G or 32G — sizes from 4mm to 12mm depending on your setup.

4

Prime the pen. Dial 2 units, press until a droplet forms at the tip. That clears the air — fluid now transfers completely.

5

Cap and store. Your setup is ready. Recap, store cool and upright, reuse cartridge after cartridge.

// Free tool

Dilution calculator

Enter what's in the vial and how much solution you added — it returns the concentration. Pure arithmetic for laboratory preparation. No protocols, no guidance, just math.

Vial contents5 mg
Solution added2.0 ml
Resulting concentration2.5 mg/ml
Open calculator
// Who we are

Built by people who got tired of bad hardware

AminoPen exists because the gear in this space was an afterthought — flimsy pens, sketchy sites, three different orders to get one working setup. We stock everything in the USA, test what we sell, and answer our emails. One shop, everything compatible, no runaround.

Real people in the USA · support@aminopen.com

About us →

Quality-checked

Every pen inspected before it ships. Problems? We make it right.

Ships from USA in 24h

Stocked domestically. No overseas wait.

Discreet packaging

Plain box, plain label. Your business stays yours.

Sterile & sealed

Ozone-sterilized cartridges, sealed components.