Bacteriostatic water is sterile water containing a bacteriostatic preservative (usually benzyl alcohol) that helps prevent microbial growth after the container has been opened.

In laboratory settings, it is used for:

• Reconstitution of lyophilized peptides and compounds
• Dilution of research materials
• Multi-use vial applications where microbial inhibition is desired

All uses should be conducted in controlled research environments.

“Bacteriostatic” refers to the ability to inhibit the growth and reproduction of bacteria, rather than killing them outright. This helps extend usability in multi-use settings under proper handling conditions.

• Bacteriostatic Water: Contains a preservative (e.g., benzyl alcohol) and is suitable for multi-use scenarios
• Sterile Water: Contains no preservative and is typically intended for single-use applications

Bacteriostatic water is typically supplied as a sterile liquid in sealed vials, often with rubber stoppers designed for multiple punctures under aseptic conditions.

Bacteriostatic water should be stored:

• At controlled room temperature
• Protected from excessive heat and direct light
• In its original sealed container

In research settings, bacteriostatic water is often used for multiple entries, but proper aseptic technique is critical. Follow manufacturer guidelines for handling and discard timelines.

Yes. A Certificate of Analysis (COA) or sterility documentation should be available, verifying quality, sterility, and composition (including benzyl alcohol concentration).

When sold as a research supply, bacteriostatic water is not intended for diagnostic, therapeutic, or consumption purposes and must be used strictly in laboratory settings.