HCG - 5000iu

Ok so I needed to use my Sabex 2ml water provided with the HCG for something else. now I need the water to mix the HCG. my question is, what kind of water is that? what should I look for when buying it? could I use SABEX saline water to mix?
I read that the water provided has a special preservative in it, so the HCG will keep, but they never mentioned what kind of water it is! Is that true? if so what water should I buy?

SABAX water is just plain sterile water. The SABAX saline water should work without a problem and most pharmacies will be able to supply you with some.