Storage & Reconstitution of Peptides UK Peptides Guide Bacteriostatic Water Vials 5 Pack 30ml BAC Water Westend Medical Supply Uses of Bacteriostatic Water for Injections and Where to Get It 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 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