How to Store Bacteriostatic (BAC) Water Temperatures, Do's & Don'ts, vialcase.com Uses of Bacteriostatic Water for Injections and Where to Get It Is it true that bac water has life of 30 days after 1st used then toss out??? Or is this stuff still usable ?? : r Retatrutide How to Store Bacteriostatic Water Safely Confused about whether BAC water needs refrigeration after opening? According to USP standards and Pfizer's own guidance, both room temp (2025C) and refrigeration are acceptable