He gave me one before i ever asked this question, being about contamination and how ill be throwing away vials with some left.
My thing is, and the point of this post i guess, is i dont believe that. If it was a true risk of contamination i feel that cases would pop up everywhere or if it was such a problem they would have a better solution or not give just anybody the means to inject themselves. Idk, but its been helping getting advice from people with more experience with this stuff than i have.