Bacteriostatic Water (30mL)
Pharma-grade bacteriostatic water for reconstitution.
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Overview
Bacteriostatic water is pharma-grade sterile water blended with 0.9% benzyl alcohol, and it is the standard diluent for turning a lyophilized (freeze-dried) peptide back into a usable solution. It is not a peptide itself; it is the clean, reliable liquid that carries everything else.
The benzyl alcohol is what makes it bacteriostatic, meaning it holds bacterial growth in check so a single vial can be drawn from more than once over a working period. That multi-use window is exactly why it is the everyday workhorse of peptide reconstitution.
The foundation of a clean reconstitution.
A good diluent should be sterile, dependable, and forgiving of repeated use. Here is what makes pharma-grade bacteriostatic water the default choice.
Pharma-grade and sterile
Produced to a pharmaceutical standard, this water gives you a clean starting point so nothing unwanted gets introduced during reconstitution.
Multi-use working window
The 0.9% benzyl alcohol acts as a bacteriostatic preservative, letting you draw from the same vial multiple times over a working period instead of one and done.
Reliable solubility
It dissolves most lyophilized peptides cleanly and consistently, giving you a clear solution and predictable prep every time.
Trusted, everyday standard
Bacteriostatic water is the go-to diluent for peptide reconstitution, so your prep stays consistent with widely used, well-understood practice.
How it works
Lyophilized peptides ship as a dry powder for stability. Bacteriostatic water dissolves that powder back into a liquid you can measure and draw, acting purely as the carrier rather than adding any activity of its own.
The 0.9% benzyl alcohol is the key detail. As a bacteriostatic preservative, it suppresses bacterial growth inside the vial, which is what allows the solution to be used across several draws over a working period instead of a single sitting.
How to use
- 1
Prepare your workspace
Work on one clean surface. Wipe the tops of both the peptide vial and the bacteriostatic water vial with an alcohol swab and let them dry.
- 2
Draw your diluent
Using a clean syringe, draw the amount of bacteriostatic water your reconstitution math calls for from the water vial.
- 3
Add slowly down the side
Insert the needle into the peptide vial and let the water run slowly down the inner glass wall rather than blasting directly onto the powder.
- 4
Swirl and store
Swirl gently, never shake, until fully dissolved. Refrigerate the reconstituted vial; the preservative supports use across multiple draws over your working period.
Independently tested, every batch
Every lot is tested by an independent lab and ships with a certificate of analysis, so what's on the label is what's in the vial.
Safety & important considerations
- Use sterile technique and swab vial tops with alcohol before every draw.
- Keep a single clean workspace and use a fresh needle for each draw.
- Store the vial refrigerated and away from direct light and heat.
- Keep out of reach of children; intended for laboratory and reconstitution only.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Frequently asked questions
What is bacteriostatic water used for?＋
It is the standard diluent for reconstituting lyophilized peptides, dissolving the dry powder into a usable liquid solution.
Why can I use the same vial more than once?＋
The 0.9% benzyl alcohol is a bacteriostatic preservative that holds bacterial growth in check, allowing multiple draws over a working period.
How long does it last once opened?＋
The bacteriostatic preservative supports a multi-use working window when kept refrigerated and drawn with sterile technique. Follow your own protocol for timing.
How much should I add to a peptide vial?＋
That depends on the peptide amount and the concentration you want. Use standard reconstitution math to decide the volume before you draw.
How is it different from sterile water?＋
Plain sterile water has no preservative, so it is best for single use. Bacteriostatic water adds benzyl alcohol, which is what enables a multi-use vial.
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