What Is Bacteriostatic Water?

We supply Bacteriostatic Water as a sterile, laboratory-grade solution for reconstituting lyophilised research peptides before in vitro use. We manufacture it to a defined pharmaceutical-grade standard. Importantly, we restrict distribution to qualified researchers and laboratory personnel.

Research Applications

Bacteriostatic water contains 0.9% benzyl alcohol as a preservative. This ingredient lets a multi-dose vial stay viable for a limited period after first use. Sterile water for injection, by contrast, only supports single use.

Solvent choice is an important variable in peptide research, since it can influence solubility, stability, and dilution accuracy. However, not every peptide tolerates benzyl alcohol well. IGF-1 analogues, for example, generally do better in alternative solvents like dilute acetic acid, so researchers should confirm compatibility before use.

Purity, Testing & Quality Assurance

We manufacture each batch under controlled conditions and sterile-filter it. Consequently, laboratories can rely on consistent solution quality across vials, supporting reproducibility when reconstituting multiple peptide products in parallel. We also retain documentation for every production run and make it available on request. For independent chemical reference data, researchers can consult the PubChem compound database.

Storage & Reconstitution

Once opened, researchers should store the solution refrigerated and use it within the timeframe on the vial label to maintain preservative efficacy. Unopened vials stay stable at room temperature but do best out of direct light. For this reason, we recommend checking vial clarity and integrity before each use.

Usage Restrictions

This product serves laboratory and in vitro research only. It is not a medicine, and researchers must not use it for human or animal consumption.

Related Research Compounds

We pair it commonly with peptides across our Metabolic Research, Growth Factor Research, and Neuropeptide Research categories. It also complements Acetic Acid Water as an alternative reconstitution solvent for compounds that need it.