Bacteriostatic Water is sterile. It has a specific pH level and contains a specific amount of benzyl alcohol as a bacteriostatic preservative. It comes in a specially formulated polyolefin vial to maintain its integrity and sterility. It has no adulterants that may damage/breakdown what you are reconstituting or cause a deep tissue infection when injected. It’s what you have to use for IM and subcutaneous injections and reconstituting peptides or growth hormone.
Normal water for injection will also work as a diluent for your growth and peptides. However, the injections are more painful. The active ingredient downgrades in normal water much faster than in BS water. Normal water for injection will keep your growth hormone or peptide active for only 24 hours. Bacteriostatic water will only start downgrading after 14 days. Bacteriostatic Water is also much less painful to inject than water for injection.