I started hgh a few years ago, got off (horrible idea) and after a little more than half a year later (about 3 months ago) started back on. I have always bought it in vials , reconstituted it put it in 1ml needles
Never bought pins and don't understand how they are used. I don't think it's explained in bop tutorials and I can't find on it.

Can anyone explain what the advantages of HGH pins are as opposed to doing it the way I already have and how to use the pins