Mixing 5mg Semaglutide: How Much Bacteriostatic Water? Bacteriostatic Water (BAC) True Lab Peptides 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), Sterile Water for Injections Farris Laboratories Reconstitution Solution Bacteriostatic Water Sterile Bac Water w Bacteriostatic Waters 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