Bacteriostatic Water – 20ml
Bacteriostatic Water – Multi-Use Sterile Water with Preservative

Bacteriostatic water is sterile, distilled water formulated with 0.9% benzyl alcohol as a preservative.
The preservative inhibits bacterial growth within the container, supporting repeated access from the same container for up to 28 days when handled and stored as directed.
This helps reduce waste, maintain sterility, and streamline workflows in laboratory, research, and technical environments.
Key Advantages
- Multi-access convenience: Open once, access multiple times while maintaining container sterility.
- Built-in preservation: Benzyl alcohol helps inhibit bacterial growth inside the container.
- Cost-efficient: Fewer single-use containers; lower waste and operational costs.
- Quality focused: Sterility-tested, sealed, and batch-labelled for traceability.
Brief Background
Bacteriostatic formulations were adopted widely in the mid-20th century to address contamination risks when a sterile container
is accessed more than once. By incorporating a preservative, facilities could move away from single-access workflows while
maintaining consistent quality controls.
Common Professional Contexts
- Research and analytical laboratories
- Industrial testing and quality control
- Technical workflows requiring preserved sterile water
- Calibration, preparation, and controlled handling procedures
Alternatives
| Option | Pros | Cons |
|---|---|---|
Sterile Distilled Water |
Preservative-free | Typically single-access after opening |
Preserved Saline |
Isotonic; supports multi-access | Not appropriate for all solution requirements |
Distilled Water (Non-sterile) |
Widely available | Lacks sterility and preservation |




