BAC Water

BAC Water stands for Bacteriostatic Water for Injection, a sterile, non-pyrogenic aqueous solution containing 0.9% benzyl alcohol as a bacteriostatic preservative in purified water. It is a pharmaceutical-grade solvent designed to dilute or dissolve water-soluble medications, peptides, and therapeutic substances for parenteral or topical application.

3ml*1vials

$13

10ml*1vials

$16

Product Information

What is BAC Water?

BAC Water stands for Bacteriostatic Water for Injection, a sterile, non-pyrogenic aqueous solution containing 0.9% benzyl alcohol as a bacteriostatic preservative in purified water. It is a pharmaceutical-grade solvent designed to dilute or dissolve water-soluble medications, peptides, and therapeutic substances for parenteral or topical application.

Key Physicochemical Properties

Active preservative: Benzyl alcohol 0.9% w/v
Base: Sterile, isotonic‑compatible purified water
Osmolality: Near‑physiologic range
Appearance: Clear, colorless, odorless liquid
Function: Inhibits bacterial growth and prevents contamination during repeated use
Regulatory class: Pharmaceutical excipient, solvent, and diluent

Unlike sterile water for single use, BAC Water supports multiple withdrawals over extended storage while maintaining microbial stability.

Target User Populations

BAC Water is intended for clinical, research, and therapeutic use under professional guidance.

Medical & Clinical Settings
- Healthcare providers diluting injectable medications, antibiotics, or hormone therapies
- Clinicians preparing multi‑dose vials for repeated administration
Peptide & Biologic Administration
- Individuals using therapeutic peptides under medical supervision
- Research personnel reconstituting peptides, proteins, or bioreagents
Topical & Irrigation Applications
- Users requiring sterile, mildly antiseptic aqueous solutions for wound care, skin preparation, or device rinsing
Laboratory & Research Use
- Researchers preparing sterile aqueous solutions for cell culture, analytical testing, or experimental dosing

Mechanism of Action

1. Bacteriostatic Preservation

Benzyl alcohol at 0.9% exerts reversible growth inhibition against a broad spectrum of Gram‑positive and Gram‑negative bacteria by disrupting microbial cell membrane integrity and suppressing essential metabolic enzymes. It prevents proliferation but does not necessarily sterilize the solution.

2. Solvent & Stabilizing Action

The aqueous base provides a biocompatible medium for dissolving polar compounds, peptides, and hydrophilic drugs without altering their structural or functional integrity.

3. Low Irritancy & Biocompatibility

Near‑physiologic tonality and controlled pH minimize tissue irritation, making it suitable for repeated cutaneous or subcutaneous exposure.

4. Multi‑Use Stability

Inhibition of bacterial contamination allows repeated puncture and withdrawal from a single vial without significant microbial growth during labeled storage conditions.