Why Choose Pureguard
Lab Grade Purity
Tested for pH, sterility, and benzyl alcohol.
COA Transparency
Results for the current lot are available online.
Clear Packaging
Labels keep product info easy to read at a glance.
Live Support
Real people ready to help with questions.
Your Order Process
Place Your Order
Choose your vial count and complete secure checkout.
Quality Control
Your batch is inspected, labeled, and sealed.
Delivery
Receive your securely packaged water.
Wholesale Orders
Streamlined bulk fulfillment
We offer volume pricing and consistent supply for orders of 200+ vials or recurring shipments.
Request Wholesale PricingVerified COA Testing
Each batch is tested by an independent lab. The current Certificate of Analysis is stored in our COA Library, where results are readily available for review.
Trusted by Research Teams
"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."
Frequently Asked Questions
How do I verify my batch?+
Match the lot number on your vial to the documentation on our COA page to confirm the details for that specific batch.
What is bacteriostatic water?+
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol, a preservative that inhibits bacterial growth.
Why does Pureguard use amber glass vials?+
Amber glass shields the solution from UV light and provides a tamper-evident, lab-trusted standard for sterile water.