That all depends on the original mixture Cameo.
Units can refer to the amount of hCG (international units, the way it is measured)
ML and CC's refers to the volume of the liquid used to carry the hcg~
If I mix a 3 oz bag of kool aid in a gallon or water, it is one strength, if I mix a 3 oz bag of koolaid in a quart of water, it is another strength~ If i drink a cup of the gallon mixture it will be weaker than the quart mixture~
So you have to know how much hCG got mixed in the liquid in order to know the strength~
(brenda~not a nurse)