Bacteriostatic water
Sterile water containing 0.9% benzyl alcohol as a preservative. Preferred for reconstituting peptides because the preservative inhibits bacterial growth, allowing multiple draws from the same vial over 28 days.
Frequently Asked Questions
What is Bacteriostatic water?
Why is Bacteriostatic water important in peptide research?
Related Terms
The process of dissolving a lyophilized (freeze-dried) peptide powder with bacteriostatic water or sterile water before injection. Proper reconstitution technique is critical — the diluent should be added slowly along the vial wall to avoid damaging the peptide.
Sterile waterWater that has been sterilized and is free of microorganisms but contains no preservative. Unlike bacteriostatic water, vials should be used within 24 hours of opening due to contamination risk.
Bacteriostatic salineA 0.9% sodium chloride solution containing benzyl alcohol as a preservative. Used as an alternative to bacteriostatic water for peptide reconstitution when isotonicity is desired to reduce injection-site irritation.
Aseptic techniqueA set of practices to prevent contamination during peptide preparation and injection. Includes swabbing vial stoppers with alcohol, using new needles for each draw, and working in a clean environment.