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Cartridge Pens

A reusable dual-chamber pen with pre-measured peptide cartridges. Twist to auto-mix peptide and bacteriostatic water for a consistent, ready-to-use research solution — no manual reconstitution required.

BiometrixLabs injection pen
How it works

Buy the pen once. Reorder cartridges.

  1. Get the reusable pen — a one-time device that holds any BiometrixLabs cartridge.
  2. Load a cartridge — dual-chamber, with the peptide and bacteriostatic water pre-measured.
  3. Twist to auto-mix — the chambers combine into a consistent, uniform solution.
  4. Swap the dispensing head — replaceable heads maintain sterility between uses.

Cartridges are priced the same as the matching vial strength. The pen device is a one-time add-on.

Pen Hardware

Add the hardware

Reusable injection pen

Reusable Cartridge Pen

One-time device. Twist-to-mix dual-chamber mechanism, accepts any BiometrixLabs cartridge. For laboratory research use only.

$50.00
Replacement dispensing heads

Replacement Dispensing Heads

Pack of swappable dispensing heads for the cartridge pen. Fresh head every use.

$15.00
Peptide cartridges

Peptide Cartridges

Same strengths and prices as our vials — choose your peptide in the shop, add the pen format at checkout of your order.

Vial pricing Browse Peptides

Research Use Only: Cartridge pens and cartridges are sold strictly for laboratory research and are not for human or veterinary use.