There's always tons of threads in here with people asking how to dose their GH so here you go.
First of all, you need to know how many iu's of GH are in your vial. There are 3iu per 1mg of GH so if your GH is dosed in mg just multiply however many mg X 3 = iu in vial.
Just as an example let's say you have an 8mg vial of GH and you're reconstituting with 1.5mL of bac water. 8mg = 24iu.
1.5mL of bac water would be 150 tics on the slin pin so we divide the total amount of bac water (in tics on slin pin) by the amount of iu's in the vial. 150 / 24 = 6.25.
That means that each 6.25 on your slin pin = 1iu. 2iu would be 12.5, 4iu would be 25, 8iu would be 50, etc.
The easiest way to dose it if you're using your own bac water is to use 1mL per 10iu of GH. If you do this then each 10 mark on the slin pin will be 1iu. 10 is 1iu, 20 is 2iu, 3o is 3iu, and so on.
For simplicity the formula is: bac water(in tics on slin pin) / iu in vial = 1iu.
Hope this helps.