I have hcg that 1500 i.u. per 1ml so in a slin 30 units pin what number am i pulling to too get 20 i.u.? Im not a smart man jenny!

If i understood your pin configuration this should be the correct configuarion
hope that helps
no worries its pretty simple. I will try to break it down for you as i understood it...
1 cc is equal to 1500 i.u
1/3 of that is 500 i.u / 30 units = 16.6 units per unit
you want 20 i.u
so you would you need to withdraw just over 1 unit of your 30 unit pin.
Thanx bros, but im a tool i meant to say 250i.u.....????

In that case as stated before just about .5 cc
Thanx!!!
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