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 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), This BAC water froze in my fridge (opened it a month ago) safe to use after defrosting? : r Retatrutide Body Pharm Tirzepatide 30 Pen Beskinny