using the same vial for a prolonged periods of time (TRT etc)

[FuriousAngus]

I believe the 20mm is standard size. Correct? They have 13mm and 20mm I ordered sterile vials from Amazon but the size isn’t in the description

Correct, 20mm is the standard size

 

[nothuman]

Vials last a really long time. I've nursed on the same vial for years in some cases. I really wouldn't worry about it

 

[Anabolic_Beast]

Vials last a really long time. I've nursed on the same vial for years in some cases. I really wouldn't worry about it

Yeah. Keep it simple. People like to make stuff super complicated. If the vial isn't broken or if there isn't visible rubber pieces floating inside the oil from a bad puncture and the vial is kept in a cool, dark place with controlled room temperature....your fine as long as those conditions are met...nurse those vial babies for as long as you want to!