How much BAC water should you use? It depends There is no one size fits all answer. Different vials may need different amounts of BAC water depending on how strong you want the final mix 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), Bacteriostatic Water Injection, Multiple Dose Vial 30 mL McGuff Boost Your Semaglutide Injections with B12 Sterile Water for Injections Farris Laboratories