Bacteriostatic Water Injection, Multiple Dose Vial 30 mL McGuff CANLABS: Does BAC Water Expire? Have had for a year in fridge. : r Peptides Here is how you reconstitute any peptide There is no universal formula for reconstituting peptides. The amount of bacteriostatic water you use depends on the peptide, the dose you're running, and how Should BAC water be refrigerated or stored at room temperature? How long do you use you Bac water for? : r Retatrutide