Bac Water 3ml

Bacteriostatic Water 3ml (Bac Water): Neurogen Research’s Small-Vial Peptide Solvent for Australia and New Zealand

A freeze-dried research peptide cannot be used until it is back in liquid form, and that is the job of bacteriostatic water (bac water), a sterile solvent (a liquid that dissolves a dried compound). Neurogen Research stocks it here in a 3ml vial, a small size for work on one peptide or a few samples rather than a whole bottle. It sits in our Peptide Research Essentials range, ships across Australia and New Zealand, and is supplied purely for in-vitro (test-tube) laboratory study, not for use in people or animals.

Bac water 3ml at a glance

• What it is: sterile water carrying a touch of benzyl alcohol, a preservative that holds back bacteria so the vial can be opened and drawn from more than once.
• Why 3ml: a small format for a single peptide or a short run, so you are not left holding a half-used bottle.
• Tested: the benzyl alcohol figure is confirmed by Janoshik, an independent lab, and a Certificate of Analysis accompanies each batch.
• Price: $9.99 a vial, and the cost per vial eases as you order more.

Bacteriostatic water, and what the benzyl alcohol is for

Bacteriostatic water is ordinary sterile water with a small measure of benzyl alcohol mixed through it. That benzyl alcohol is the whole point: it is a preservative, and the word “bacteriostatic” means it holds bacteria in check. With no bacteria able to establish inside, the vial need not be thrown out after a single use; it can be reused over several sittings instead.

Reconstituting freeze-dried peptides with bac water

Research peptides arrive as a dry, freeze-dried powder, and in that state there is nothing to measure or use. Getting them back into a workable liquid is called reconstitution, and bac water is the usual solvent for it: add the water, let the powder dissolve, and the sample is ready for the bench. A single 3ml vial is enough for a focused job such as preparing one compound, whether a recovery peptide like BPC-157 or a metabolic one like MOTS-C, all in-vitro.

Bacteriostatic water 3ml or 10ml: which size to choose

The 3ml and the Bacteriostatic Water 10ml hold identical solvent, so the only real question is how quickly a vial empties for you. The 3ml suits a single peptide, a brief test, or a trial run, where a bigger bottle would be left standing part-full. The 10ml makes more sense if you juggle several peptides at a time, or you simply prefer to reorder less. Plenty of labs stock both and reach for whichever the day’s work calls for.

When acetic acid water is the better solvent

A handful of peptides refuse to dissolve in bacteriostatic water and will only go into a mildly acidic liquid. Acetic acid water covers those cases; it is water holding a small amount of acetic acid, the same acid that makes vinegar sharp. In everyday practice you would default to bacteriostatic water and set aside a bottle of acetic acid water for the stubborn few.

How bacteriostatic water differs from plain sterile water

In the vial, the two look identical, and both start out sterile. The difference is the benzyl alcohol. Plain sterile water has no preservative, so once its seal is broken it is effectively single-use. Bacteriostatic water keeps bacteria from settling in, which lets the same vial be reused across later sessions. When a prepared sample has to last beyond one sitting, that is the deciding factor.

Independently tested, with a Certificate of Analysis

With a solvent, what matters is what is actually inside the vial, so Neurogen Research sends every batch to Janoshik, an independent third-party lab. The product’s single active ingredient is benzyl alcohol, and the test records it at 7.79 mg/ml, so you can confirm the preservative is at the expected level rather than trust the label. Each batch’s Certificate of Analysis (CoA), the signed lab summary, is posted on our certificate page, ready to match against the vial that arrives.

Bacteriostatic water for laboratory research only

This is laboratory material, and nothing more. Neurogen Research bac water is not a medicine, a supplement or a cosmetic, it holds no approval from the TGA (the Therapeutic Goods Administration, Australia’s medicines regulator) or any comparable body for use in the body, and nothing here is medical advice. We supply it only to qualified researchers, who must handle it in a proper lab setting and observe all relevant Australian and New Zealand laws.

Ordering bacteriostatic water 3ml in Australia and New Zealand

• Bacteriostatic water 3ml is for sale online from Neurogen Research at $9.99 a vial, from an Australian supplier holding stock locally, with a lower per-vial price on multipacks.
• New to peptide prep? The Starter Kit pairs bac water with the essential reconstitution supplies in one order.
• Orders in before 12pm AEST leave Sydney the same business day, sent by tracked Australia Post Express. Rough transit: 2 to 4 business days across metro Australia, 3 to 5 for regional, 4 to 6 for WA, and 4 to 6 to New Zealand.
• Clear $200 and express delivery is free (otherwise a flat $14.95 applies), with a batch Certificate of Analysis included in every order.

Bacteriostatic water 3ml storage and shelf life

• Hold unopened vials in a cool, dark spot under 25°C.
• Do not freeze the vial.
• Wipe the rubber stopper with an alcohol swab before every draw, and keep your handling clean.
• After the first draw, aim to use the vial within about 28 days, and discard it earlier if the contents look cloudy or discoloured.

Bacteriostatic water 3ml: full specifications

Bacteriostatic water 3ml: common questions

What is bacteriostatic water (bac water)?

It is sterile water that carries a small amount of benzyl alcohol. The benzyl alcohol is a preservative: it stops bacteria from growing, so one vial can be used more than once. Neurogen Research offers it in a 3ml size for laboratory research.

What is a 3ml bacteriostatic water vial used for?

A 3ml vial takes freeze-dried (dried-out) research peptides and returns them to a liquid ready for study. The size suits one peptide or a small batch. Keep it to laboratory research only, not people or animals.

What is the difference between bacteriostatic water and sterile water?

They both start as sterile water. The difference is that bacteriostatic water contains benzyl alcohol, which keeps bacteria away so the vial can be reused. Sterile water has none, so once opened it should be used once and then thrown away.

Should I choose the 3ml or the 10ml?

Take the 3ml for one peptide or a small amount, so none is wasted. Take the 10ml when you work with several peptides at once, or want to reorder less often. The solvent inside is the same; only the amount in the vial changes.

How long does a 3ml vial last once opened?

Sealed and stored properly, it holds until the date on the vial. Once open, the preservative protects it for a short time, and most labs stop using the vial by about 28 days, sooner if it looks cloudy or off-colour.

Does bacteriostatic water need to be kept in the fridge?

No. A sealed vial is fine in a cool, dark place below 25°C, and it should never be frozen. Wipe the top of the vial with an alcohol swab before each use.

Where can I buy bacteriostatic water 3ml in Australia and New Zealand?

You can buy it online from Neurogen Research. We keep stock in Australia and ship across Australia and New Zealand, so you do not need a local shop or a “near me” search.

Is bacteriostatic water approved for human or medical use?

No. This product is for laboratory research only. It is not a medicine, and it must not be used in people or animals.

Disclaimer: Neurogen Research supplies this bac water for in-vitro laboratory research only. It is not a medicine, a supplement or a cosmetic, and it must not be used in humans or animals. By placing an order, you confirm that you are a qualified researcher and that you will store, handle and use the product within all applicable Australian and New Zealand laws.