Where to buy bacteriostatic water for peptides in Canada

You can buy bacteriostatic water for research peptides from a peptide supplier that stocks it as a laboratory supply, and in Canada pepuro sells it in 3, 10, 20 and 30 mL vials with free domestic shipping. Wherever you buy it, the label decides whether a vial is fit for reconstitution: it should read sterile water with 0.9% benzyl alcohol, no sodium chloride, a lot number and an expiry date that hasn't passed.

If you want to know what bacteriostatic water is and why it's preferred over plain water, bacteriostatic water vs sterile water covers that. This guide is about getting a good vial and knowing how long it lasts.

Where to buy bacteriostatic water in Canada

There are three common places to look, and they differ mostly in what you can verify before the vial reaches you.

At pepuro, bacteriostatic water is in the same catalog as the peptides. The 30 mL vial is Pfizer (Hospira) brand and the 3, 10 and 20 mL vials are generic. All of them are sterile water with 0.9% benzyl alcohol. It's a diluent, not a peptide, so it isn't purity tested by HPLC the way a peptide vial is.

For how research chemicals and their supplies are treated in Canada, see are research peptides legal in Canada? This page is general information, not legal advice.

Which bacteriostatic water is best for peptides

Brand matters less than the label. A good vial from any maker shows these five things:

• Sterile water with 0.9% benzyl alcohol as the contents.
• No sodium chloride. Bacteriostatic sodium chloride is a different product, and bacteriostatic water vs saline explains why the two shouldn't be swapped.
• A named manufacturer and a lot number, so the vial can be traced.
• An expiry date that is still in the future.
• An intact seal over a clean rubber stopper.

Size is the other choice. A large vial works out cheaper per mL, but an opened vial has a puncture limit (see below). If you'll only open it for one or two peptide vials, a smaller size means less goes to waste.

Is bacteriostatic water from Amazon OK?

It can be. The problem with any marketplace is that the listing and the vial you receive may not match, and you can't check the vial until it's in your hands. So check it then:

1. Read the label against the list above. Look for 0.9% benzyl alcohol, no salt, a manufacturer, a lot number and an expiry date.
2. Check the seal and stopper. A broken or missing seal means the vial may not be sterile.
3. Hold it to the light. The liquid should be clear, with no cloudiness or particles.

If a vial fails any of these checks, set it aside. A contaminated diluent ruins the peptide you add it to, and the peptide is the expensive part.

Does bacteriostatic water expire if it's unopened?

Yes. Every vial has an expiry date, and an unopened vial is good until that date as long as it is stored the way the label directs. Past that date, don't use it.

Opening the vial starts a second clock. Many pharmacy guidelines set 28 days after the first puncture as the limit for a multi-use vial unless the manufacturer's label says otherwise. Whichever limit comes first applies. Write the date of the first puncture on the vial so you don't have to remember it. Is bacteriostatic water the same as reconstitution solution? goes into the opened-vial limits, refrigeration and freezing in more detail.

A peptide that has been reconstituted has its own timeline, separate from the water's. How to store research peptides covers that.

Can you make bacteriostatic water yourself?

No, not to the same standard. Bacteriostatic water starts as sterile water, made and sealed under controlled conditions, with benzyl alcohol added at 0.9%. At home you can't confirm the water is sterile, that the vial and stopper are sterile, or that the benzyl alcohol is at the right strength. Boiled or distilled water is not sterile water.

The benzyl alcohol only slows microbial growth. It doesn't make a contaminated vial sterile again, so a homemade mix has nothing to fall back on.

Once you have a good vial, how to reconstitute a lyophilized peptide walks through the technique and the concentration math.

Every pepuro order ships free from our Calgary, Toronto and Vancouver distribution centers, the same business day your e-Transfer clears, and every peptide vial carries a QR code that opens its own third-party lab report.

For research use only. Not for human or animal consumption.