Bacteriostatic Water 10ml – Lab Essential Overview
Bacteriostatic Water 10ml is sterile water for injection containing 0.9% benzyl alcohol, which acts as a bacteriostatic preservative to inhibit bacterial growth. It is a standard laboratory essential used for reconstituting lyophilised peptide compounds prior to research use. Each vial of Bacteriostatic Water 10ml is supplied sealed and sterile, for laboratory and research use only — not for human or veterinary use.
Pyrox Labs supplies Bacteriostatic Water 10ml as a lab essential alongside our full peptide research range, giving researchers a reliable reconstitution solution sourced from vetted manufacturing partners and suited to protocols spanning multiple vials or compounds.
Contents

Product Details
| Product | Bacteriostatic Water |
| Volume | 10ml |
| Preservative | 0.9% Benzyl Alcohol |
| Form | Sterile liquid |
| Packaging | Sterile sealed glass vial |
| Use | Laboratory research use only |
Research & Handling
- Supplied strictly for laboratory research use only
- Used to reconstitute lyophilised peptide compounds prior to research use
- Handled using standard laboratory safety procedures
- Inspect vial seal and clarity before use
- Not for human consumption or medical application
Bacteriostatic Water 10ml is a standard reconstitution solution referenced throughout peptide research literature, with its benzyl alcohol content specifically chosen to inhibit bacterial growth across repeated draws from the same vial. Researchers wanting further chemical background on benzyl alcohol as an antimicrobial preservative can review the compound’s profile via the National Institutes of Health’s PubChem database.
Research Applications
Within laboratory settings, Bacteriostatic Water 10ml is used to reconstitute lyophilised peptide powders into solution ahead of research protocols. Its benzyl alcohol content helps inhibit bacterial growth across repeated draws from the same vial, distinguishing it from plain sterile water for injection, which lacks a preservative and is intended for single-use reconstitution only.
The 10ml format suits researchers running protocols across multiple peptide compounds or vials, where the smaller Bacteriostatic Water 3ml may need replacing more frequently. Researchers working across multiple peptide compounds often keep Bacteriostatic Water 10ml on hand as a standard lab essential.
Reconstitution with Bacteriostatic Water 10ml is typically carried out using a Reconstitution Syringe 5ml 21G to draw the diluent, with an Insulin Syringe 0.5ml 29G (Pack of 10) used for finer dosing measurement afterward. Vial tops should be disinfected before and after each puncture using a Leukoplast Pre-Injection Wipe. For step-by-step guidance, see our How to Reconstitute Peptides guide.
Correct reconstitution technique, including sterile handling and appropriate dilution ratios, is determined by each researcher’s own experimental protocol. As with all products supplied by Pyrox Labs, Bacteriostatic Water 10ml is intended solely to support controlled, laboratory-based research work.
Storage Guidance
- Store refrigerated (2–8°C), away from light
- Do not freeze
- Use within the timeframe indicated by your research protocol once opened
- Discard if the vial seal is compromised or solution appears discoloured
- Keep the vial upright and away from direct handling of the septum where possible
Frequently Asked Questions
Is Bacteriostatic Water 10ml legal in the UK?
Yes, when supplied and used strictly for laboratory research purposes. Bacteriostatic Water 10ml is not supplied for human use, medical use, or therapeutic application.
What is Bacteriostatic Water 10ml used for?
It is used to reconstitute lyophilised peptide compounds into solution ahead of research use, and contains a benzyl alcohol preservative suited to multi-draw use.
How is Bacteriostatic Water 10ml supplied?
In a sterile sealed 10ml glass vial.
How fast is UK delivery?
Orders placed before 4:30pm are dispatched the same working day, Monday to Friday, with tracked delivery. Orders after that go the next working day.
Why choose the 10ml size over 3ml?
The 10ml format suits researchers running protocols across multiple compounds or vials, reducing how often the vial needs replacing compared with the smaller 3ml size.
Can Bacteriostatic Water 10ml be used with any peptide compound?
Yes, it is a general-purpose diluent suitable for reconstituting a wide range of lyophilised research peptides, though the correct dilution and handling approach depends on each individual experimental protocol.
Delivery Information
- Same-day dispatch on orders placed before 4:30pm, Monday to Friday (otherwise next working day)
- Free Royal Mail Tracked 24 on all UK orders over £50
- Royal Mail Tracked 24 available for £5.00 on UK orders under £50
- Royal Mail Tracked 48 available for £4.00 on UK orders under £50
- All orders sent in discreet, plain packaging with no external branding
- Tracking details are emailed once your order has been dispatched





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