What do I need to inject HGH

Hi,

im new to the forum and currently use test to supplement my weight training development.
i recently recieved intex pharma HGH which was supplied in vials.
I have mixed a vial with the provided sterile water and wanted to know if there is a pen on the market that avoids using a dispoable syringe every time I inject.
I have ordered a box of viva 30g needles but im confused with what pen and how to get the reconstituted HGH into the pen.

Any guidance on what pen on the market would work for this is much appreciated.
thanks