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 long do you use you Bac water for? : r Retatrutide Reconstitution = mixing your peptide powder with bacteriostatic water, Best practice:, Room temp bac water, Inject slowly along vial wall, Avoid foam bubbles, Gently swirl (never shake), How Much Bacteriostatic Water to Add to Peptides? Prime Peptides Reconstitution WATER 10 mLs My Pure Peptide