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Bacteriostatic WaterResearch supply · Ships within Canada

Also known as: Bac Water, BAC Water, 0.9% Benzyl Alcohol Water

Bacteriostatic water is sterile (germ-free) water with 0.9% benzyl alcohol added. The benzyl alcohol stops bacteria from growing in vials that are used more than once. It is the standard liquid for mixing freeze-dried (powdered) peptides. They are then injected under the skin or into a muscle. Without it, mixed peptides would only be safe to use for hours, not weeks.

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$12

10 mL

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In plain English

What is bacteriostatic water used for?

Bacteriostatic Water is germ-free water used to turn powdered peptides into a liquid. A little added alcohol stops bacteria from growing, so a mixed vial lasts for weeks.

What it is used for

Mixing peptides. Powdered peptides need a liquid before they can be injected.
Many uses from one vial. A mixed vial can be used many times over weeks when kept in the fridge.
Keeping the vial clean. It helps keep bacteria from growing each time a needle goes into the vial.
Standard medical supply. It is used all over the world with medicines given by injection.

How it works, in everyday words

Bacteriostatic Water is sterile water with a little benzyl alcohol mixed in. Sterile means it has no germs. The alcohol does not kill bacteria, but it stops them from growing. Without it, a mixed peptide would only be good for hours, not weeks.

Good to know

Add it slowly down the side of the vial. Do not spray it onto the powder.
Gently swirl until the powder dissolves. Do not shake it.
Store at room temperature before opening. Once mixed, keep it in the fridge and use within 28 to 30 days.

Buying Bacteriostatic Water in Canada

Ships from inside Canada, so your order never crosses a border and never waits in customs.
Orders placed Monday to Friday ship the same day by Canada Post Xpresspost, with tracking.
Most orders arrive in 1 to 3 business days.
Prices are in Canadian dollars. Shipping is free on orders over $199, or a $20 flat rate below that.
Plain, private packaging with nothing on the outside that shows what is inside.

Sold as a research supply. Full details: Shipping Policy.

Time in the Body

N/A (carrier liquid)

Common Dose

1–5 mL, based on the peptide and how strong you want the mix

How It Is Given

Drawn into a syringe, then slowly added to the peptide vial

How Often

Used as needed to mix peptides

The Science Behind It

The benzyl alcohol does not kill bacteria. It stops them from growing. So the same vial of mixed peptide can be safely used many times over 28+ days when kept in the fridge. The water itself is a sterile, pH-balanced (not too acidic) liquid that carries the peptide.

What Research Suggests

✦Needed to mix powdered peptides for injection
✦Lets you use one peptide vial many times (28+ days)
✦Sterile and pH-balanced
✦Keeps bacteria from growing each time you draw from the vial
✦Standard medical-grade mixing liquid

Dosing Guide

Common dose1–5 mL, based on the peptide and how strong you want the mix

RangeMost peptides are mixed with 1–3 mL

How OftenUsed as needed to mix peptides

How it is givenDrawn into a syringe, then slowly added to the peptide vial

Notes

Slowly add bac water down the side of the peptide vial. Do not spray it right onto the freeze-dried powder. Gently swirl (do not shake) until it is fully dissolved. Once mixed, keep the vial in the fridge and use it within 28–30 days.

Where Research Stands

A standard medical supply. It is used around the world with injected medicines.

How to Store It

Keep at room temperature before opening. Keep in the fridge after first use. Replace it by the maker's expiry date.

Legal Status

You can get it with a prescription or from research supply companies. It is widely used and legal to buy.

Dose Calculator

Enter the vial size, how much water you added and the dose you want. We will show how many units to draw.

Amount in Vial (mg)

The mg number printed on the vial label

Water Added (mL)

How much bacteriostatic water you mix in

Dose You Want (mcg)

Micrograms (mcg) you want each time

Syringe Size

How much your syringe holds

Results

Strength per mL

—mcg/mL

Amount to Inject

—mL

Fill Syringe To

—units

Doses per Vial

—doses

Fill in every box above to see your results.

Quick Reference

1 mg= 1,000 mcg

1 mL= 100 units (on a 100u syringe)

1 mL= 1 cc

Usual mixing amount1–3 mL bacteriostatic water per vial

How long will this vial last?

Pick the vial size, enter how much you use each time, and how many times a week. We will estimate how long the vial lasts.

Peptide (optional)

Amount each time

Times per week

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Research use only. This calculator only does the math for trained lab staff. It does not suggest a dose, an amount to inject, a treatment, or any use in people. Always follow your approved lab plan, the product paperwork and the rules where you work.