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Bacteriostatic Water
USP-grade bacteriostatic water containing 0.9% benzyl alcohol for laboratory reconstitution where compatible with the applicable protocol.
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Bacteriostatic Water
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What It's Researched For
Laboratory reconstitution
Dissolves compatible lyophilised research compounds for solution-phase work where the protocol specifies bacteriostatic water.
Multi-dose preservative
0.9% benzyl alcohol inhibits bacterial growth after puncture; it does not guarantee sterility indefinitely.
USP grade
Manufactured or supplied to the stated USP pharmaceutical specification.
Tamper-evident
Sealed vials with tamper-evident closures for sealed-product integrity.
Protocol-dependent use
Not universal - some materials require preservative-free water, saline, a buffer or another solvent.
Concentration math
Concentration (mg/mL) = mass (mg) ÷ volume (mL). Choose volume from the protocol, not a generic dosage rule.
Overview
In short: Bacteriostatic water is USP-grade sterile water containing 0.9% benzyl alcohol as a preservative - a laboratory diluent for reconstituting lyophilised research compounds where the applicable protocol permits its use.
Key research facts
These points summarise lab themes, not human outcomes.
Many research compounds are supplied as lyophilised (freeze-dried) material. Lyophilisation removes water to support transport and storage stability, but solution-phase work requires a compatible solvent. Bacteriostatic water is one possible diluent where the compound is aqueous-compatible, benzyl alcohol is acceptable, and the documentation permits its use.
The “bacteriostatic” part refers to 0.9% benzyl alcohol. Benzyl alcohol inhibits bacterial reproduction; it does not sterilise an already contaminated vial, protect against every microorganism, or replace appropriate laboratory handling. That preservative profile is what distinguishes bacteriostatic water from preservative-free sterile water and allows appropriately labelled products to be supplied in multi-dose containers.
New-U Research Compounds supplies bacteriostatic water as USP-grade, tamper-evident multi-dose vials for laboratory reconstitution. Confirm compatibility with the experimental protocol before use. Research use only - all claims made on this site are for testing and research use only.
Mechanism of Action
Bacteriostatic water is sterile water containing 0.9% benzyl alcohol - a preservative that inhibits bacterial growth without claiming to sterilise contamination after repeated punctures.
Official bacteriostatic-water labelling describes sterile, nonpyrogenic water containing benzyl alcohol in a multi-dose container. Storage instructions vary by manufacturer - some official products specify controlled room temperature rather than mandatory refrigeration. Always follow the exact label supplied with the vial. Peptide HPLC purity and mass-spectrometry identity certificates do not verify accessory water quality; documentation for bacteriostatic water should relate to the supplied water batch or manufacturing specification.
Common Questions People Are Asking
What is the difference between bacteriostatic water and sterile water?
Both begin sterile at manufacture, but bacteriostatic water contains 0.9% benzyl alcohol as a preservative while standard sterile water does not. The preservative supports repeated withdrawal from a multi-dose vial when the label permits it. Preservative-free sterile water is generally single-use. Choose the diluent specified by the compound manufacturer, validated method or experimental protocol.
How much bacteriostatic water should I use to reconstitute a peptide vial?
There is no single volume for every vial. Concentration (mg/mL) equals compound mass (mg) divided by solvent volume (mL). The correct volume depends on the experimental protocol, target concentration, solubility and vial capacity. New-U’s reconstitution calculator handles the arithmetic; it is laboratory preparation math only, not dosing guidance.
Why should I introduce the water slowly against the vial wall?
A direct stream onto a lyophilised cake can foam and mechanically stress fragile material. Slow introduction along the glass wall lets the solvent dissolve the cake gently - swirl afterwards rather than shaking.
Can I freeze bacteriostatic water?
Freezing is generally not recommended. Follow the storage instructions on the supplied label. Do not use the product if the solution appears cloudy, particulate or discoloured, or if storage history cannot be confirmed.
Does bacteriostatic water need refrigeration?
Not every product does. Some official labelling specifies controlled room-temperature storage. Always follow the exact label attached to the supplied vial. After first puncture, apply the manufacturer’s in-use period.
Do I need a prescription to buy bacteriostatic water?
No. New-U Research Compounds supplies bacteriostatic water as a research reconstitution solvent, sold strictly for laboratory research use - no prescription is required. Pharmacy-grade bacteriostatic water is typically gated behind a prescription.
Why is bacteriostatic water so hard to find or out of stock?
It is prescription-gated at most pharmacies, restricted or de-listed by large online retailers, and subject to periodic manufacturing shortages. New-U stocks it as a standard research accessory alongside the compound catalogue, in USP-grade sealed multi-dose vials.
Can I buy bacteriostatic water internationally (UK, EU, Australia, Canada and worldwide)?
Yes. New-U ships bacteriostatic water discreetly worldwide, direct from source, in approximately 6–14 business days, with free shipping on orders over $350. Regulatory status varies by country, so buyers are responsible for compliance in their own jurisdiction.
How many vials of bacteriostatic water do I need for my peptides?
It depends on vial sizes, target concentrations and how many reconstitutions you run within the opened-vial window. A multi-dose bacteriostatic-water vial can support repeated draws only while it remains within its labelled in-use period. New-U includes free bacteriostatic water with peptide orders at a 1-per-5 ratio and sells additional 10-vial packs separately.
Should I buy 3 ml or 10 ml bacteriostatic water vials?
Both sizes are the same USP-grade water with 0.9% benzyl alcohol - the choice is about workflow. 3 ml vials suit shorter single-compound protocols with less discard when the opened-vial period ends. 10 ml vials offer a lower per-mL rate for multi-compound protocols or frequent reconstitution. Both ship as sealed 10-vial packs.
Is New-U bacteriostatic water lab-verified by Janoshik?
No. Janoshik HPLC and mass-spectrometry certificates apply to peptide research compounds, not to this accessory. Bacteriostatic water is supplied to the stated USP-grade specification with 0.9% benzyl alcohol. Product-specific accessory documentation should be reviewed separately from peptide COAs; do not treat a peptide purity certificate as verification of the water.
Where can I buy Bacteriostatic Water?
Right here - Bacteriostatic Water is supplied directly by New-U Research Compounds on this page as a USP-grade sterile solution in sealed, tamper-evident multi-dose vials - no prescription required - and shipped direct from source worldwide in discreet, tracked packaging.
How much does Bacteriostatic Water cost?
Bacteriostatic Water pricing is shown live on this page, per pack size - multi-vial packs as standard, with single-vial options where listed. Shipping is free on orders over $350.
Is Bacteriostatic Water USP grade?
Yes. Bacteriostatic Water is supplied as a USP-grade sterile solution in sealed, tamper-evident multi-dose vials, batch-controlled.
How do I buy Bacteriostatic Water?
Add the Bacteriostatic Water pack size you need to your cart and check out: enter your shipping details, then choose your payment method - cryptocurrency or card - on the next step. Every order ships with its batch Certificate of Analysis (COA).
What payment methods can I use to buy Bacteriostatic Water?
At checkout you can pay by card or crypto. New-U supports BTC and selected stablecoin and network-asset payments across Ethereum, Solana, TRON, Polygon, Base, BNB Chain and Linea. You choose your method after confirming your order.
How fast is shipping, and do you ship worldwide?
Yes - we ship worldwide in discreet, unmarked, temperature-stable, tracked packaging. Delivery typically takes 6–14 business days, and shipping is free on orders over $350.
Is it legal to buy Bacteriostatic Water?
Bacteriostatic Water is supplied as a research accessory for laboratory use. Pharmacy-dispensed equivalents are prescription-gated in some jurisdictions; the research-grade supply on this page is sold strictly for laboratory use - buyers are responsible for compliance in their own region.
Research use only - all claims made on this site are for testing and research use only.
Pharmacokinetics
Certificates, databases & peer-reviewed sources
Last reviewed: 27 July 2026 · New-U Research Compounds
Key Characteristics
Specifications
About Bacteriostatic Water: Laboratory Reconstitution Research Guide
Bacteriostatic water is a laboratory diluent, not a peptide or stabilising active. Virtually every lyophilised compound on this site needs a compatible solvent before solution-phase research can begin, and bacteriostatic water is one option where aqueous reconstitution with benzyl alcohol is permitted by the compound documentation or experimental protocol.
The key feature is the 0.9% benzyl alcohol preservative. Preservative-free sterile water is commonly single-use because there is nothing to inhibit microbial growth after puncture. Benzyl alcohol changes the handling profile for multi-dose containers; it does not make bacteriostatic water chemically superior for every compound, and it does not sterilise contamination introduced by poor technique.
New-U Research Compounds supplies bacteriostatic water as USP-grade, sealed, tamper-evident vials. Proper handling still matters: draw with a sterile syringe, introduce slowly against the inner wall of the compound vial, and swirl gently rather than shaking. Nothing on this page is medical advice, dosage guidance or an instruction for administration.
Customer Reviews
SKU and batch were obvious
Good accessory order — bottles were protected in transit, label details readable, and the packaging suited lab-prep inventory, with clear support contacts on hand.
- Maya C**** · 30 August 2026
Documentation matched the vial
Bacteriostatic Water arrived with intact caps and readable labels, easy to log into storage and a clean match to the order.
- Elena R**** · 30 August 2026
Sealed correctly on arrival
Simple to receive and catalogue — the item matched the listing, arrived cleanly packed, and slotted easily into the stockroom record.
- Omar H***** · 30 August 2026
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PRECISION. PURITY. PERFORMANCE.
Research peptides at >99% HPLC-verified purity, third-party tested by Janoshik Analytical & Freedom Diagnostics, with Certificates of Analysis published per released batch. Supplied strictly for laboratory research use.
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Research use only - all claims made on this site are for testing and research use only. Purchasers must be 21 years of age or older.
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Website & business operated by Hilxera Distribution Services LLC. Registered in Wyoming, ID: 2026-001928701.
© 2026 New-U Research Compounds · new-u.io
[image: Bacteriostatic Water research vial — Accessories compound supplied by New-U Research Compounds]