Introduction to Pen Injector Pen Injector is a type of reusable liquid medicine injection device that contain liquid medicine solution with a syringe. The Liquid medicine medication is placed in the pen in a cartridge, eliminating the need to extract liquid medicine each time. Simply remove the pen cap, adjust the dial to the desired dose, and then perform the liquid medicine injection. Currently, NEST Pen Injector are available in two categories: Reusable Pen Injector and Disposable Pen Injector. In addition to being used for liquid medicine injections, this device is suitable for administering various medications, including growth hormone, liquid medicine, antibiotics, interferon, beauty products, biochemical emergency prevention, hemostatic pain relief, first aid for heart disease, detoxification, antipyretic analgesics, anesthetic sedatives, and more. NEST Reusable Pen Injector Nest reusable injection pens have been developed specif…