Is it ok to re-use an old (Test Cyp) Vial (6 months old, and as empty as you can get it by drawing out)? Also, I want to re-use the vial for Tren, not Test. This is my only option, as I do not have access to any new vials quick enough.
I will only be emptying 1 3ml sachet into it, and need somewhere for it to go. The Tren will only stay in there for 1 week.
any info would help