Buy Bacteriostatic Water in Australia
Bacteriostatic Water, often typed BAC water, is supplied in Australia by Australian Research Peptides in sealed 3 mL and 10 mL glass vials, with shipping to all states and territories. It dissolves a freeze-dried peptide into solution and has no action of its own; the preservative stops bacteria multiplying between withdrawals, so one vial can be entered several times rather than discarded after the first draw. For in vitro research purposes only.
Lab Supplies · Sterile Filtered Solution · Sterile filtered · SKU ARP-BAC-3
$15.99
1
Presentation
3 mL per vial
Grade
Sterile Filtered
Form
Sterile Filtered Solution
Category
Lab Supplies
Same-day dispatch on business-day orders placed before 12pm AEST, Mon–Fri
Tracked shipping Australia-wide ·typically 1–2 business days to most areas by Express Post · free post over $199, free Express over $299
For in vitro research purposes only. Not for human consumption. Not for animal consumption. This product is not a drug, food, cosmetic, or dietary supplement. Any amounts shown are reported from published studies, with the species or trial population named. ARP gives no dosing, medical or therapeutic guidance of its own.
BAC Water · 3 mL
$15.99
Frequently Bought Together
About BAC Water
Bacteriostatic water is plain water carrying an added preservative. Bacteriostatic means it stops bacteria multiplying rather than killing them outright. That single ingredient is the whole difference between this and unpreserved laboratory water, and it is why a vial can be drawn from on several occasions. The US compounding standard USP 797 gives a punctured vial of that kind 28 days.
The standard preparation of this kind is Bacteriostatic Water for Injection USP, which uses benzyl alcohol at 0.9 per cent, or 9 mg per mL. ARP does not publish the agent or the concentration its own supplier uses. Ask us before ordering if that detail decides the purchase.
No chromatography applies to water, so this line carries no purity certificate. ARP filters and records every lot instead. It sits in Lab Supplies rather than with the peptides, and every quantity on this page is a millilitre figure.
Content reviewed
Further reading: Peptide Reconstitution: The Calculator and the Maths · Bacteriostatic Water vs Sterile Water: What Is the Difference?
BAC Water specifications, storage and shipping
- Compound: BAC Water
- Class: Laboratory consumable — water with a bacteriostatic preservative
- Appearance: Clear, colourless solution
- Sizes & SKUs: 3 mL (ARP-BAC-3), 10 mL (ARP-BAC-10)
- Presentation: sealed glass vial
- Form: Sterile Filtered Solution
- Grade: Laboratory consumable, sterile filtered
- Batch verification: sterile filtered, with every lot recorded
- Classification: In vitro research purposes only — laboratory reference material
- Storage
- Room temperature; refrigerate after opening
- Format
- Multi-dose (bacteriostatic)
Every lot is sterile filtered. No certificate of analysis is published for this line.
Business-day orders before 12pm AEST are dispatched the same day with tracked, discreet shipping. Standard delivery within Australia typically takes 2–5 business days. See Shipping & Delivery for details, and follow your parcel on the Track Order page.
For in vitro research purposes only. Not for human consumption. Not for animal consumption. Not a drug, food, cosmetic, or dietary supplement. No therapeutic or medical claims are made.
Questions about BAC Water
Australian Research Peptides answers the main Australian questions about BAC Water, including exact specifications, live price and availability, ordering, storage, measurements, testing and comparisons with related supplies. Start with the quick answers, then browse every existing question by topic.
Buying, price and availability
Bacteriostatic Water is supplied by Australian Research Peptides and posted from within Australia, never imported to order. Place a weekday order before 12pm AEST and the vial is dispatched that same day. Express Post reaches every state and territory, with a tracked standard service beside it. Because nothing crosses a border, no parcel is held at customs. The 3 mL and 10 mL vials both carry the BAC code, and payment is PayID or bank transfer.
One millilitre of Bacteriostatic Water reads as 100 marks on a U-100 insulin syringe. The Humulin R U-100 label sets that scale, at 100 units in every millilitre. Each mark is therefore 0.01 mL of whatever is drawn, so 20 marks is 0.2 mL. Australian Research Peptides publishes no graduation for its own syringe pack, so read the barrel you have. ARP publishes no amount for a person or an animal.
Bacteriostatic Water is supplied by Australian Research Peptides Pty Ltd, the Australian company behind ARP, dispatching from Sydney. Every lot is filtered and recorded, so a vial traces back to the run it came from. Monday to Friday, an order placed ahead of the 12pm AEST cut-off goes out the same day, with Express Post covering all states and territories. No card is needed — PayID and bank transfer only.
Bacteriostatic Water almost never reaches the free Standard tracked post threshold alone, and is not meant to — it would take a carton of vials. Its usual role is the reverse: ordered alongside peptides, it is frequently what tips a total over the mark. One further difference — Australian Research Peptides grades this line Sterile Filtered, so the peptides-only multi-vial discount never touches it.
Bacteriostatic Water travels at ambient temperature and needs no cold pack, which is why a parcel carrying it does not include one. The preservative in the vial is what holds bacterial growth back, and it does that at room temperature rather than relying on cold. Arriving warm with the seal intact is not a sign that anything has gone wrong — in transit the seal is what matters, not the thermometer.
Identity, names and exact format
BAC Water is Bacteriostatic Water, also written bac water, shortened to bac, and abbreviated BWFI for bacteriostatic water for injection. Buyers also type peptide water for the same vial, and the common misspellings reach it too. Sterile water for injection is not the same product — it carries no preservative and is a single-entry item. Whichever spelling you search, Australian Research Peptides ships the sealed vial from Sydney, so nothing clears customs on the way.
Bacteriostatic Water is preserved water used as the liquid that dissolves a freeze-dried peptide before laboratory work. Peptides arrive as a dry cake with no liquid in the vial. Adding the water turns that solid into a solution at the concentration the work calls for, and the preservative allows the resulting vial to be drawn from more than once.
An added preservative is the only thing separating Bacteriostatic Water from plain laboratory water. Bacteriostatic means the agent holds bacterial growth back rather than killing the organisms outright. Pfizer's prescribing information for Bacteriostatic Water for Injection USP, the standard preparation of this type, gives 9 mg of benzyl alcohol in every millilitre. The same label names an 11 mg per millilitre presentation, or 1.1 per cent, beside it. The agent and strength in Australian Research Peptides' own vials are not published. Contact us if that detail decides the order.
Bacteriostatic Water is sold by volume, so millilitres are the honest unit for it. The peptides are dry solids sold by mass, which is why those pages read in milligrams. Australian Research Peptides records the unit against each product rather than assuming one for the whole catalogue. A milligram figure on a liquid would describe nothing a buyer could act on.
Bacteriostatic Water is almost always bought as part of a larger order, so it is paid for inside that order's single total rather than separately. Australian Research Peptides treats a later top-up as a fresh order, which means a second payment reference, a second transfer and a second parcel — so including the water first is simpler.
The two Bacteriostatic Water listings hold 3 mL and 10 mL of the same liquid. Formulation, filtration, glass and preservative are identical across both. Only the amount in the vial changes. The pair exists so that a small working quantity or a larger one can be ordered without buying two vials of the same size.
Research context and evidence
Bacteriostatic Water works by carrying a preservative that keeps microbial numbers from climbing between withdrawals. That is what makes repeated entry into one vial reasonable. It is not the same as sterilising. Anything already present is held in check rather than destroyed, so a vial still deserves clean handling. The label for the USP preparation describes repeated withdrawals from a single container.
Handling, storage and measurements
The 3 mL and 10 mL vials hold identical water and differ only in how much of it you get. A 3 mL vial suits a single peptide reconstitution or a first order, and is the volume the bundles include. A 10 mL vial suits several reconstitutions and costs less per millilitre. Either way the clock starts at the first puncture rather than at delivery, so the larger vial is only better value if it is used inside that window.
An unopened Bacteriostatic Water vial belongs at room temperature and out of direct light, and putting it in the fridge achieves nothing. The preservative in it does the work that cold would otherwise have to. Refrigeration is a rule about reconstituted peptide, and it gets misapplied to the diluent constantly.
Bacteriostatic Water keeps for around 28 days from first puncture, which is the conventional working limit and the period USP 797 — the United States compounding standard for sterile preparations — allows a multiple-dose container. The benzyl alcohol is what suppresses bacterial growth between entries, and that protection is not indefinite. Write the date on the vial when the seal is first broken, wipe the stopper each time, and discard it if the solution stops being clear.
Bacteriostatic Water is stored at room temperature and not frozen, unlike the lyophilised peptides it is used to reconstitute. Keep the unopened vial out of direct light. Australian Research Peptides' stated condition for this grade is room temperature, then refrigeration after opening. The Bacteriostatic Water for Injection USP label gives 20 to 25 degrees Celsius. Discard any vial that has turned cloudy or shows particles.
Sound bacteriostatic water is clear, colourless and free of anything visible. The signs it should not be used are haziness, floating or settled particles, any tint at all, and a stopper or seal that is cracked, lifted or weeping. Benzyl alcohol restrains bacterial growth between withdrawals but does not keep a punctured vial sterile forever, and repeated entries without wiping the closure shorten what protection there is. Contamination can also leave the liquid looking unchanged, which is why the date of first puncture matters as much as appearance.
Bacteriostatic Water goes into the peptide vial slowly, running down the inside of the glass. Aim it away from the powder rather than straight onto the cake. Swirl or roll the vial gently until the liquid turns clear. Never shake it, because shaking foams a peptide solution. Let a cold vial reach room temperature first, so moisture does not condense on the powder.
At 1 mL per 10 mg peptide vial, a 3 mL Bacteriostatic Water vial covers three of them and a 10 mL covers ten. Using 2 mL per vial halves both figures. The real limit is usually time rather than volume, because a punctured water vial has a working life once its stopper is first pierced.
Bacteriostatic Water is the standard diluent for every lyophilised peptide Australian Research Peptides sells, from a 10 mg BPC-157 vial to a 100 mg GHK-Cu one. What changes between them is the volume, not the diluent. A published reconstitution calculator guide works that volume out for whichever concentration the work needs.
Bacteriostatic Water has no single right volume, because what you add fixes the concentration. Take the milligrams printed on the peptide vial and divide by the millilitres of water. Empty a whole 3 mL vial into a 30 mg peptide and you have 10 mg per mL. Use half the water and the same peptide gives 20 mg per mL. Australian Research Peptides' reconstitution calculator runs the sum for any pair.
Testing and batch documents
Bacteriostatic water is a diluent rather than an active medicine, and Australian Research Peptides supplies it as a laboratory consumable alongside its research peptides. ARP does not dispense it against a prescription. Pharmacy-supplied bacteriostatic water for clinical use is a separate supply chain with its own requirements.
Bacteriostatic Water is sterile filtered rather than assayed by chromatography. A purity assay works by separating a peptide from whatever sits beside it, and water is not a peptide. Mass spectrometry has nothing in water to confirm either. Australian Research Peptides records every lot, so a vial traces back to the run it came from. No sterility test is run on the line.
BAC water does not come with a peptide Certificate of Analysis, because no peptide assay is performed on water. A COA reports a chromatography purity result, and there is no peptide in the vial to separate or measure. Australian Research Peptides describes this consumable by its batch record instead, which traces a vial back to the filtration run it came from. Contact us with the order reference if that record is needed.
No, Bacteriostatic Water from Australian Research Peptides is not the Hospira product, and ARP does not resell it. Hospira is a Pfizer brand whose 30 mL vial is a pharmaceutical preparation, labelled prescription-only in the United States. ARP supplies its own sterile-filtered vials in 3 mL and 10 mL. Different suppliers, different products.
Ordering, payment and Australian delivery
Bacteriostatic Water carries its own Australian-dollar price for each of the two vial sizes, 3 mL and 10 mL. Both figures are held in Australian Research Peptides' catalogue and quoted straight from it, never fixed into written text. Being graded Sterile Filtered rather than HPLC Verified, this consumable sits outside the automatic multi-vial discount that peptide lines earn. A second vial therefore costs what the first did.
Bacteriostatic Water is supplied online by Australian Research Peptides in two sizes, 3 mL and 10 mL, both posted from within Australia. It is a catalogue line of its own, so a peptide and the water to dissolve it are two purchases rather than one packaged item. Settlement is by PayID or bank transfer only, and no card number is taken at any stage.
Bacteriostatic Water reaches Australian buyers in 1–2 business days via Express Post across much of the country, and in 2–5 via standard tracked post. As the one liquid item Australian Research Peptides stocks, its vials are wrapped against knocks and travel inside the same parcel as any peptides ordered with them. Photograph a cracked, leaking or unsealed vial before discarding it and contact support.
Yes — bacteriostatic water moves from its vial to the peptide vial by syringe, so water alone is not enough to reconstitute anything. Australian Research Peptides lists insulin syringes as a separate catalogue line. Water and syringes together are what turn a dry peptide vial into something you can actually draw from.
A 3 mL Bacteriostatic Water vial suits one or two standard 10 mg peptide vials and is the usual first purchase. The 10 mL is the better choice for a large-format vial such as 100 mg GHK-Cu, an 80 mg KLOW or a 70 mg GLOW, or for several peptides at once. One 10 mL vial replaces more than three 3 mL vials, so fewer seals are broken and fewer lots need tracking. The liquid is identical in both.
Access, approval and sport questions
Bacteriostatic Water on its own reconstitutes nothing — it needs a syringe to move it and a lyophilised peptide to move it into. Australian Research Peptides lists insulin syringes as their own catalogue line, and a twenty-pack covers a great many transfers. The peptide is the other half and is whichever compound the work is about. Nothing else is required: no needles beyond the syringe, no filters, no second diluent.
Australian Research Peptides sells Bacteriostatic Water as a laboratory consumable and never as a medicine. Supply is for in vitro research, not for human or veterinary use. The pharmaceutical preparation of the same name is prescription-only in the United States, where its label reads Rx only. ARP gives no legal advice and publishes no view on Australian scheduling. Anyone unsure where their own work sits should ask a qualified adviser.
Bacteriostatic Water for Injection USP is an approved pharmaceutical article in America, produced under a manufacturer's application and carrying an Rx-only label. That approval covers those particular finished vials and nothing beyond them. A laboratory-grade diluent sold as a research consumable is a different article, outside the approval, whatever the two share chemically. Grade and regulatory standing are separate ideas.
More questions
Australian Research Peptides supplies bacteriostatic water as a laboratory consumable; Chemist Warehouse is a retail pharmacy, and any sterile-water product it carries is dispensed for approved medical use. That is a different purpose and a different supply route, so the two are not interchangeable even where the contents read alike. ARP sells it beside the research vial it reconstitutes, dispatched in the same parcel.