Bacteriostatic Water 

Bacteriostatic Water  Lab Reconstitution Solution

So you’re looking for Bac Water. Good. Let’s get into it.

This page covers what Bac Water is, how it’s tested, and what specs to expect. No hype. Just facts a lab tech would tell you.

What Is Bac Water Used For?

Bac Water is sterile water containing 0.9% benzyl alcohol. The benzyl alcohol acts as a preservative. So it stops bacterial growth after the seal is broken. Researchers use it to reconstitute lyophilized powders. It is for laboratory and research use only. Not for human consumption.

Is Bac Water Tested?

Yes. Every batch from zenpeptideamanda.com gets tested by Janoshik Analytical. Janoshik is a third-party lab. They are independent from the seller. Therefore, results aren’t biased. Each batch comes with a COA (Certificate of Analysis). You can check the COA before you buy. This matters because purity claims without testing mean nothing.

What’s the Purity Level?

Also, Purity sits at 99.5% per Janoshik testing. That number reflects the solution’s sterility and composition. Also, the benzyl alcohol concentration stays consistent at 0.9%. This consistency matters for reconstitution accuracy. Low-quality bac water can have inconsistent benzyl alcohol levels. That throws off your dilution math.

How Should Bac Water Be Stored?

Store it at 2-8°C, in a refrigerator. Keep it away from light. Once opened, use within 28 days. After that, toss it. Don’t push past the expiration window. Bacteriostatic properties weaken over time once the vial is punctured. So label your vial with the open date. This small step saves you from guessing later.

What Form Does It Come In?

It comes as a sterile liquid solution in a 30mL multi-dose vial. Each vial is sealed with a rubber stopper and crimp cap. This setup allows multiple needle draws without breaking sterility. First, wipe the stopper with alcohol before each draw. Next, use a new sterile needle every time.

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Specs Table

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Where to Buy Tested Bac Water?

You can order Bac Water directly from zenpeptideamanda.com. Every batch ships with a COA link. So you know exactly what you’re getting before reconstitution. Always check the COA against the batch number on your vial. This confirms the bottle matches the test.

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FAQ

Is bacteriostatic water the same as sterile water?
No. Sterile water has no preservative. Bac water contains 0.9% benzyl alcohol, which inhibits bacterial growth after opening.

How long does Bac Water last once opened?
28 days when refrigerated at 2-8°C. After that, the preservative effect drops, and contamination risk rises.

Can I use Bac Water for multiple vials of peptides?
Yes. That’s its main purpose. The benzyl alcohol allows repeated needle draws across multiple reconstitutions, within the 28-day window.

Does Bac Water need refrigeration before opening?
It’s best stored cold, but unopened vials can tolerate brief room-temperature periods. However, refrigeration extends shelf life and stability.

What’s the difference between Bac Water and saline?
Saline contains sodium chloride and no preservative. Bac Water contains benzyl alcohol instead. Each suits different reconstitution needs.

How do I verify Bac Water purity?
Check the COA from Janoshik Analytical. Match the batch number on the vial to the report on zenpeptideamanda.com.

Is benzyl alcohol safe in Bac Water?
At 0.9%, it’s the standard preservative concentration used in multi-dose reconstitution solutions for research applications.