COA-Verified · For Research Use
Lab-Tested Bacteriostatic Water for Research
- COA published for every shipping lot
- 0.9% benzyl alcohol preservative
- Tracked US shipping on every order
Single vials $11 — save up to 39% on 25-vial packs.
For research use only. Not for human or veterinary use.
COA Available
Current lot EB61901
Why researchers choose BacterioWater
- Lab-tested every lotBy an independent laboratory
- COA published onlineCurrent lot, before it ships
- Sterile, lot-controlled fillInspected, sealed and numbered
- Ships tracked from the USUSPS and UPS, plain packaging
Vial packs
Featured vial packs
One product, five pack sizes — larger packs lower your price per vial. Every pack ships the same 30 mL bacteriostatic water vial.
Currently shipping
Lot EB61901 · COA published before release
- Sterility
- Endotoxins
- pH
- Benzyl alcohol level
30 mL multi-dose vial · currently shipping lot EB61901
The product
What is bacteriostatic water?
Sterile water preserved with 0.9% benzyl alcohol, used as a solvent for dilution and reconstitution in research settings.
BacterioWater supplies it as a 30 mL multi-dose vial with a rubber stopper for repeated access, filled in controlled, numbered lots and independently tested before release.
Our standards
Every claim on this site traces back to a published, lot-coded document — not a badge.
- 01
Independent batch testing
Sterility, endotoxins, pH, and benzyl alcohol level are verified by an independent laboratory before any lot is released.
- 02
Published transparency
The current lot's full Certificate of Analysis is published before it ships — check your vial's lot code against it any time.
- 03
Sterile, lot-controlled fill
One formulation, filled in controlled, numbered lots and sealed before shipping, so every vial matches the last.
Our standard
Precision matters in research
One formulation, filled in controlled, numbered lots and tested by an independent laboratory before release — so the vial you receive matches the one before it, and the results are published where you can read them.
Ordering
How ordering works
Three steps from pack to doorstep.
Step 1: Select your pack
Choose 1, 3, 5, 10 or 25 vials. Larger packs lower the price per vial.
Step 2: Secure checkout
Complete a standard secure checkout. US orders only; shipping is calculated at checkout.
Step 3: Ships from the US
Tracked via USPS or UPS in plain packaging with no product description on the outside.
Customers
Trusted by research teams
Notes from customers, alongside the certificate every claim on this site points back to.
“Product has been consistent and easy to work with. Orders arrive when expected and the vials are clearly labeled.”
“When I have a question about an order, I get a clear reply the same day. It's been straightforward working with them.”
Current shipping lot
- Product
- 30 mL Sterile Bacteriostatic Water (0.9% benzyl alcohol)
- Tested for
- Sterility · Endotoxins · pH · Benzyl alcohol level
- Laboratory
- Chromate, independent
- Analysed
- May 22, 2026
- Status
- Currently shipping on all orders
The lot code on your vial label should match the code above.
FAQ
Frequently asked questions
The short version of what buyers ask most — product, COA lookup, and shipping.
What is bacteriostatic water?
Bacteriostatic water is sterile water with benzyl alcohol added as a preservative, which suppresses bacterial growth so the vial can be accessed more than once. It is used as a solvent for research dilution and reconstitution.
What does BacterioWater sell?
One product: 30 mL sterile bacteriostatic water (0.9% benzyl alcohol), filled in controlled lots for a consistent vial every time.
How do I look up my COA?
Visit the Lab Testing & COA page. We publish the current shipping lot's COA — the lot code on your vial label should match the code shown there.
Do you ship internationally?
We currently ship only within the United States.
Do you send tracking details?
Yes. Once your order ships, you'll receive an email with tracking details.
How should vials be stored?
Store according to the conditions on the label, protected from extreme temperatures, direct sunlight, and contamination. Do not use vials that are damaged, discolored, or past the labeled expiry date.
Order COA-Verified Bacteriostatic Water
30 mL multi-dose vials, independently tested and shipped tracked from the US.