its a 5cc vail with somaject , so on a 1cc
insulin pin draw out 1cc that is to the number 10 and inject in the powder vail, that is 100 units, then draw another 6.6 out and add that to the vail, now you have 166 units containing 21 iu of gh.
if you want to take 4iu per day 5 on two off, and you take a shot am and pm then thats 10 shots per week divide 10 into 166 and you have to draw 1.6 on the
insulin pin ,
i use a 3/10cc
syringe for my injections cause its more accurate