Formulation
Bacteriostatic Water
Definition
Bacteriostatic water is sterile water that contains 0.9% benzyl alcohol as a bacteriostatic preservative. It is the preferred solvent for reconstituting lyophilized peptides because the preservative inhibits bacterial growth, allowing the reconstituted solution to be used over multiple research sessions (typically up to 28 days when stored properly at 2-8°C). This differs from sterile water for injection, which contains no preservative and must be used in a single session to avoid contamination.