Pfizer Bacteriostatic Water 30mL Multi Dose Vial VPeptide Long Title: Pfizer Bacteriostatic Water for Injection USP (0.9% Benzyl Alcohol) 30mL Multi Dose Vial: Sterile Research Grade Diluent for Lyophilized Peptide Reconstitution HOW TO SELF INJECT B12 AT HOME with Dr. Tyler Rogers If you've been prescribed vitamin B12 shots or exploring at home wellness, this step by step guide will walk you through how Bacteriostatic Water, Sterile, G Biosciences DID YOU KNOW? Bacteriostatic Water contains 0.9% benzyl alcohol, which prevents bacteria from growing after the vial is opened. This makes it safe to use for up to 28 days once punctured