Hey I don't know why I am getting so confused on reading this crap... I have a reli-on 1/2ml cc it holds up to 50 units. 30 gauge 5/16 length insulin needle.. Now if I want to do 4IU's a day of GH what mark is that on my damn syringe !? Also part of my PCT cycle is taking 500IU a day of HCG So where would that number land on my Syringe??? Im frustrated as hell. Please help haha