EJ reusable pens
Research use only
An EJ reusable pen is a peptide pen that takes EJ refill cartridges. It comes apart into five parts: the cap, the refill cartridge, the collar, the body and the end knob.
Each listing names one product and one strength and shows its price. The pen comes with one cartridge of that product; further refill cartridges are sold separately, by product and strength.
Lab reports open without an account. A report is linked to a product only when the name and strength match. For laboratory research only.
