Bacteriostatic Water - Dragon Pharma

Buy Bacteriostatic Water 0.9% by Dragon Pharma at XSteroids. Bacteriostatic water, often called bac water, is sterile water for injection with a small amount of benzyl alcohol added as a preservative, which is what allows a single vial to be used for repeated withdrawals. Dragon Pharma supplies it as a multi-dose vial at 0.9%. This guide covers what it is, how it is used for peptides and HGH and the rules that come with it.

Bacteriostatic water is a diluent, not a product you inject on its own. The information below is educational only.

What Is Bacteriostatic Water?

According to the FDA labeling for Bacteriostatic Water for Injection, USP, it is a sterile, nonpyrogenic preparation of water for injection containing 0.9% (9 mg/mL) of benzyl alcohol as a bacteriostatic preservative, supplied in a multiple-dose container from which repeated withdrawals can be made. The pH is 5.7, with a range of 4.5 to 7.0.

Its stated indication is narrow: it is for diluting or dissolving drugs intended for intravenous, intramuscular or subcutaneous injection, following the instructions of the manufacturer of the drug being prepared.

What Bacteriostatic Water Is Used For

Peptides and HGH Reconstitution

In practice, bac water is the standard solvent for lyophilized peptides and growth hormone. Products supplied as powders - HGH (Dragontropin), BPC-157, TB-500, the BPC-157 / TB-500 blend, Tirze-Pep, Kisspeptin-10 and PT-141 - must be mixed with a diluent before use, and the preservative is what keeps a multi-dose vial usable across several weeks of draws.

Why the Preservative Matters

Plain sterile water has no preservative, so it is intended for single use. Benzyl alcohol inhibits bacterial growth, which is why a bacteriostatic vial can be entered more than once. That same preservative is the reason the product carries specific warnings.

How Long Bacteriostatic Water Lasts

Unopened vials are stable for years when stored correctly. Once a multi-dose vial has been punctured, the widely applied default from CDC and USP guidance is 28 days, after which the vial should be discarded even if it still looks fine. Labelling the vial with the date of first use is the simplest way to stay inside that window.

Reconstitution Rules and Warnings

The label is explicit about the limits: the preparation must not be used in neonates because of benzyl alcohol toxicity, it is not for fluid replacement, it must not be used in epidural or spinal anesthesia, and intravenous administration without a dissolved solute can cause hemolysis because the solution is not isotonic on its own. Aseptic technique is required for every entry and withdrawal, the mixture should be mixed thoroughly and used promptly, and reconstituted drug solutions should not be stored unless the drug's own manufacturer directs it. Do not use a vial that is cloudy or has a broken seal.

Bacteriostatic Water vs Sterile Water

Sterile water for injection contains no preservative and is intended for single use, typically for diluting a drug that will be given immediately. Bacteriostatic water contains 0.9% benzyl alcohol and is designed for multi-dose use, which makes it the practical choice for a peptide protocol where several doses are drawn from one mixed vial.

Storage Instructions

Store unopened vials at room temperature in a dry place, away from direct light. After the first puncture, keep the vial in a clean environment, use aseptic technique and discard it within the recommended 28-day window. Keep all vials out of the reach of children.

Why Buy Bacteriostatic Water from XSteroids?

At XSteroids you buy the Dragon Pharma Bacteriostatic Water directly from the brand catalog, with secure checkout, US domestic shipping in 3 to 6 days and international delivery in 12 to 26 days. Browse the full range on the Dragon Pharma brand page to complete your peptide research stack.