Pfizer Hospira Bacteriostatic Water 30 mL Peptide Test 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 Bac Water: What It Is, Uses, and How to Choose a Reliable Supplier Biotech Spain Do you guys refrigerate your bac water after first use? : r Peptides