Bacteriostatic Water 30 mL (Pfizer Hospira) — Canada

Bacteriostatic water — often called BAC water — is sterile water with a small amount of benzyl alcohol added. That one ingredient is the difference: it stops bacteria from growing, so a vial can be used more than once. Standard Labs ships genuine, sealed 30 mL Pfizer Hospira multi-dose vials from inside Canada, so your order arrives without customs delays.

What is bacteriostatic water?

It is sterile water for injection with 0.9% benzyl alcohol added as a preservative. Plain sterile water has no preservative, so once you puncture it, bacteria can start to grow. Bacteriostatic water is made for multi-dose use: you can draw from the same vial several times. Once the rubber stopper is first punctured, label the vial and use it within 28 days.

What researchers use it for

• Reconstituting lyophilized compounds — dissolving a freeze-dried peptide powder into a liquid you can measure.
• Multi-dose work — the benzyl alcohol preservative allows repeated sterile draws from one vial over the 28-day window.
• General lab diluent work — a neutral, preservative-containing diluent for research use.

Product details

• Vial volume: 30 mL multi-dose glass vial with flip-off cap
• Composition: Sterile Water for Injection, USP with 0.9% (9 mg/mL) benzyl alcohol
• Manufacturer: Hospira, Inc. (a Pfizer company)
• Storage: 20–25°C, do not freeze, protect from light

BAC Water Canada: Why Researchers Buy From Standard Labs

• Stocked in Canada. Dispatched from British Columbia to every province. No customs, no import fees, no border holds.
• Fast, tracked, discreet. Packed and shipped within 24–48 business hours with end-to-end Canadian tracking.
• Genuine sealed vials. Manufacturer-labelled Hospira product with intact tamper seals — not repackaged or decanted.
• Fair pricing. Built for independent researchers and lab budgets alike, with free Canadian shipping over $159.

Frequently Asked Questions

Where can I buy bacteriostatic water in Canada?

Directly from Standard Labs. Vials ship from inside Canada, so there is no customs clearance, no import duty, and no risk of a border hold.

Can you buy bacteriostatic water over the counter at Shoppers Drug Mart, London Drugs, or Walmart?

Usually not. Most Canadian pharmacies don’t keep 30 mL bacteriostatic water on the shelf. Plain sterile water and saline are sometimes available, but bacteriostatic water is typically kept behind the dispensary counter, and availability varies by store and province. Ordering online gets you a sealed vial without the pharmacy trip.

What is the difference between bacteriostatic water and sterile water?

Sterile water has no preservative and is single-use — once it’s open, bacteria can grow in it. Bacteriostatic water contains 0.9% benzyl alcohol, which stops that growth, so one vial can be drawn from repeatedly for up to 28 days.

How long does bacteriostatic water last?

Unopened, it lasts until the expiry date printed on the vial. Once you puncture the stopper, use it within 28 days. Write the date on the vial when you first open it.

Does bacteriostatic water expire?

Yes. Every vial carries a manufacturer expiry date. After first puncture the clock is much shorter — 28 days, regardless of the printed date.

Does bacteriostatic water need to be refrigerated?

No. Store it at room temperature, roughly 20–25°C. Keep it out of direct light and never let it freeze. Some researchers refrigerate after opening; either is acceptable as long as it stays within the 28-day window.

What is bacteriostatic water used for?

Dissolving lyophilized (freeze-dried) research compounds into a measurable liquid, and any laboratory procedure that needs a preserved, multi-dose diluent. It is for research use only.

How much bacteriostatic water should I add to my peptide vial?

The volume you add sets the concentration (mg/mL), not the dose. Most 5 mg or 10 mg vials are reconstituted with 1–3 mL. Use our Peptide Calculator for exact syringe units, or read How Much Bacteriostatic Water to Add.

How fast is shipping across Canada?

Orders go out within 24–48 business hours with live tracking. Most Canadian cities — Vancouver, Calgary, Edmonton, Winnipeg, Toronto, Montreal — arrive in 2–4 business days.

Reference information

Read the Bacteriostatic Water research profile in the Standard Labs Compound Library, and our guide to how much bacteriostatic water to add.

For research use only. Use as directed by the product label and your laboratory procedure.