Do you guys refrigerate your bac water after first use? : r Peptides B12 deficiency? Tablet or injection whats right for you? , If your deficiency is mild, tablets can work well. But severe symptoms or poor absorption? , Injections may be the better choice., Vitamin b1, b6, and b12 Injection: The Complete FAQ Guide In 2025 AIPAK ENGINEERING B12 Shots and NAD+ Perfect B Bacteriostatic Water for Injection: Package Insert Prescribing Info 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