Refillable injector pen

Hi,

New to the forum, but this thread is gold! I got a couple of questions. I was thinking of using a pen for IG1-LR3, reconstituted with 0.6% Acetic Acid, 1mg in 2ml solution. Would I just fill the cartridge with 2ml and once loaded purge 1.3ml of air? Or does it work best if the cartridge is filled all the way? Should I be concerned with the 0.6% AA eating at the rubber?

From my research into IGF1-LR3, it’s best pinned immediately post workout in the muscle trained, so using a pen would be a game changer.

Fill the cartridge and purge the air.

0.6% acetic acid is much weaker than vinegar; I doubt it'd eat away at much.
 
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