Bacteriostatic Water
10ml
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Availability: In Stock
For research purposes only
What Is Bacteriostatic Water?
Bacteriostatic Water (BAC water) is sterile water containing 0.9% benzyl alcohol as a preservative. The benzyl alcohol inhibits bacterial growth, allowing the same vial to be accessed multiple times — making it the standard reconstitution solution for lyophilised (freeze-dried) research peptides and proteins.
Each 10ml vial provides enough volume to reconstitute several peptide vials, depending on the concentration required.
How It Works — Mechanism of Action
Bacteriostatic Water is not a biologically active compound — it is a diluent. Its function comes from the 0.9% benzyl alcohol content, which is bacteriostatic: it stops bacteria from multiplying rather than sterilising on contact. This keeps the solution usable across repeated needle punctures of the rubber stopper, which is why it is preferred over plain sterile water for multi-draw research vials.
When added to a lyophilised peptide, the water dissolves the powder into a solution of known concentration, allowing precise volumetric measurement in the laboratory.
Research Applications — Bacteriostatic vs Sterile Water
The key difference between the two diluents is the preservative:
- Bacteriostatic Water — contains 0.9% benzyl alcohol. Suitable for multi-draw vials that are accessed repeatedly over days or weeks.
- Sterile Water — contains no preservative. Intended for single-use applications; once opened, it offers no protection against microbial growth.
For research peptides that are drawn from the same vial over multiple sessions, bacteriostatic water is the standard laboratory choice.
Reconstitution & Handling
The volume of BAC water added determines the final concentration of the solution. Common laboratory reference volumes:
- 5mg vial — 1ml to 2ml of bacteriostatic water
- 10mg vial — 2ml to 3ml of bacteriostatic water
- One 10ml vial — reconstitutes approximately five vials at 2ml each
Use the reconstitution calculator to work out the exact concentration and draw volume for any vial strength.
Laboratory handling guide:
- Add BAC water slowly down the inside wall of the vial — not directly onto the powder
- Swirl gently — never shake
- Allow the powder to dissolve fully before drawing
- Refrigerate reconstituted solutions at 2–8°C
- Discard any solution that appears cloudy or contains visible particles
⚠️ Important: Not every compound is reconstituted with bacteriostatic water. For example, IGF-1 LR3 is more stable in a dilute acetic acid solution. Always confirm the correct solvent for a specific compound before reconstituting.
Enter your dose and BAC water volume to calculate your exact draw amount.
Enter all values above to see your draw volume.
For research reference only. Always verify volumes independently.
Side Effects & Safety
Bacteriostatic Water is a laboratory diluent and has no pharmacological activity. Handling and storage notes:
- Store unopened vials at controlled room temperature, away from direct light. Do not freeze.
- Once the stopper has been punctured, laboratories commonly discard the vial after 28 days
- Maintain aseptic technique — wipe the stopper with an alcohol swab before each puncture
- The benzyl alcohol preservative makes it unsuitable for research protocols that specify a preservative-free diluent
Synergy Stacks — Compatible Research Compounds
Bacteriostatic Water does not interact pharmacologically with other compounds. It is the standard reconstitution diluent for most lyophilised peptides stocked at Riptide Health, including BPC-157, TB-500, BPC/TB-500, CJC/IPA, Ipamorelin, GHK-Cu and Retatrutide.
Frequently Asked Questions
What is bacteriostatic water used for?
Bacteriostatic water is used to reconstitute lyophilised (freeze-dried) research peptides into a solution of known concentration. Its 0.9% benzyl alcohol preservative allows the vial to be accessed multiple times.
What is the difference between bacteriostatic water and sterile water?
Bacteriostatic water contains 0.9% benzyl alcohol, which inhibits bacterial growth and allows multiple draws from one vial. Sterile water contains no preservative and is intended for single use.
How much bacteriostatic water do I add to a peptide vial?
Common laboratory volumes are 1–2ml for a 5mg vial and 2–3ml for a 10mg vial. The volume added sets the final concentration — the Riptide Health reconstitution calculator shows the exact draw volume for any combination.
How many peptide vials does a 10ml bacteriostatic water vial reconstitute?
At 2ml per vial, one 10ml vial of bacteriostatic water reconstitutes approximately five peptide vials.
How long does bacteriostatic water last once opened?
Laboratories commonly discard a vial 28 days after the stopper is first punctured. Unopened vials should be stored at controlled room temperature, away from direct light.
Do you ship bacteriostatic water within Australia?
Yes. Riptide Health dispatches bacteriostatic water from within Australia, and it can be added to the same order as your research peptides.
TGA Disclaimer
This product is sold strictly for research and laboratory purposes only. It is not approved by the Therapeutic Goods Administration (TGA) for human therapeutic use and is not intended to diagnose, treat, cure, or prevent any disease or medical condition. Riptide Health complies with all applicable Australian regulations governing the supply of research compounds.
All products are sold strictly for research purposes only. By purchasing, you confirm that you understand and comply with all applicable laws and regulations in your jurisdiction regarding the acquisition and use of research compounds. These products are not intended for human consumption, therapeutic use, or veterinary use. They have not been evaluated by the Therapeutic Goods Administration (TGA) or any other regulatory authority. Riptide Health accepts no liability for misuse of any product.
Bacteriostatic Water — 10ml
Research grade • In Stock