H2O
H2O (bacteriostatic water) supplied lyophilised for laboratory reconstitution use only — sterile water preserved with 0.9% benzyl alcohol. Third-party tested to 99% purity via HPLC and mass spectrometry. Certificate of Analysis available on every batch. Not for human consumption.
$15.00 / month
Bacteriostatic water is a sterile, preserved diluent supplied by Advanced Peptide Institute for laboratory use in reconstituting lyophilized research peptides. It is not itself a peptide compound. Each bottle is manufactured at 99% purity, preserved with 0.9% benzyl alcohol, and third-party tested for laboratory research use only.
What is Bacteriostatic Water?
Bacteriostatic water is water for injection formulated with 0.9% benzyl alcohol as a bacteriostatic preservative, which inhibits bacterial growth within the sealed vial across multiple withdrawals. Unlike the peptide products sold by Advanced Peptide Institute, bacteriostatic water contains no active peptide or pharmacological compound — it functions solely as a sterile diluent used by researchers to reconstitute lyophilized (freeze-dried) research peptides into solution prior to laboratory use. Each vial is manufactured and packaged under sterile conditions and is intended exclusively to support laboratory reconstitution workflows, not as a standalone research compound with any studied mechanism of action. Advanced Peptide Institute supplies bacteriostatic water strictly for laboratory research use, manufactured at 99% purity and independently verified through third-party testing.
Research Applications
In laboratory settings, bacteriostatic water is used by researchers exclusively to reconstitute lyophilized peptide research compounds into a liquid solution suitable for further laboratory handling, such as aliquoting, dilution, or use in in vitro assay systems. Because it contains a bacteriostatic preservative rather than being pure sterile water, it is intended for multi-use vials where repeated withdrawal is required over the vial’s usable timeframe, as opposed to single-use sterile water for injection. Researchers select reconstitution volume based on the specific peptide’s Certificate of Analysis and the concentration required for their protocol. Bacteriostatic water is a standard laboratory supply item across peptide-handling workflows and is not itself administered or studied as a research compound.
Purity & Third-Party Testing
Every batch of Advanced Peptide Institute bacteriostatic water is manufactured to 99% purity and independently verified using HPLC (high-performance liquid chromatography) and mass spectrometry testing to confirm formulation consistency and the absence of contaminants. A batch-specific Certificate of Analysis is available for every lot at https://advancedpeptideinstitute.com/certificate-of-analysis/. This testing applies to the diluent itself and is independent of the purity testing performed on any peptide it is used to reconstitute.
Storage & Handling
Store unopened bacteriostatic water at room temperature, away from direct sunlight. After the vial is first punctured, refrigerate at 2-8°C and use within the timeframe specified on the Certificate of Analysis, typically within 28 days. Keep out of reach of children.
Frequently Asked Questions
What purity is Advanced Peptide Institute bacteriostatic water?
Advanced Peptide Institute bacteriostatic water is supplied at 99% purity, verified by independent third-party HPLC testing and mass spectrometry. A Certificate of Analysis is available for every batch at https://advancedpeptideinstitute.com/certificate-of-analysis/.
How should bacteriostatic water be stored?
Store unopened at room temperature away from direct sunlight. After first use, refrigerate at 2-8°C and use within the Certificate of Analysis timeframe, typically 28 days.
Is bacteriostatic water a peptide?
No. Bacteriostatic water is a sterile, preserved diluent used to reconstitute lyophilized research peptides; it is not itself a peptide compound and carries no studied mechanism of action.
General laboratory reference information on benzyl alcohol as a bacteriostatic preservative is indexed on PubMed.
For research use only. Not for human consumption. Not evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any disease.