Quote Originally Posted by likelifting
I dont' think there is a chemical reaction with BAC water and HCG that makes HCG 'work'. Its just a solution for injecting HCG. I assumed if bac water going bad meant there might be bacteria levels would be high and unsafe for injecting. Don't quote me on that, someone with more knowledge will step in and help.
It's simply a sterile vehicle for reconstitution and delivery of HCG. As long as you sterilize the rubber stopper and use sterile syringes and needles, Bacstat should remain free of contaminants. 6 months post expiration should be ok. If any doubt, replace it.