Bacteriostatic water — the full guide
Bacteriostatic water is sterile water with 0.9% benzyl alcohol added as a preservative — the standard multi-dose diluent for reconstitution work in research and laboratory settings.
What it is
The benzyl alcohol preservative inhibits microbial growth after first puncture, which allows the same vial to be accessed multiple times over a defined window. This is the property that makes bacteriostatic water a practical reconstitution medium versus single-use sterile water.
Sizes we stock
10mL, 30mL and 50mL multi-dose vials. Size choice usually comes down to how much supply you want on hand and how often you expect to reorder. The size comparison below has a side-by-side breakdown.
Shop bacteriostatic water
10mL, 30mL and 50mL multi-dose vials shipped Australia-wide.
What is bacteriostatic water?
Background on the preservative system and how it differs from sterile water.
Compare 10mL / 30mL / 50mL
Side-by-side comparison to help you pick the right vial size.
Storage guide
Fridge or room temperature, opened vial handling, and discard timing.
Opening a vial
Step-by-step on the flip-off cap, swabbing, and drawing fluid.
Where to buy in Australia
Online suppliers, Sydney sourcing, and chemist availability.
For in-vitro research and laboratory use only. Not intended for human or veterinary use.