Bacteriostatic Water 10 ml

Bacteriostatic Water 10 ml is Hilma Biocare's sterile diluent for reconstituting lyophilised peptides, somatropin and other freeze-dried compounds. Each sealed vial contains 10 ml of pharmaceutical-grade water preserved with 0.9% benzyl alcohol, a concentration that inhibits bacterial growth while remaining compatible with most peptide research. It is supplied as one 10 ml multi-dose vial in the original printed carton with a scratch-off authenticity code.

What Bacteriostatic Water Is

Bacteriostatic water is not plain sterile water. The distinction is the preservative: 0.9% benzyl alcohol makes the solution bacteriostatic, meaning it suppresses the growth of bacteria introduced when a needle punctures the stopper. That property is what allows a single vial to be entered repeatedly over a research window instead of being discarded after one withdrawal. Sterile water for injection contains no preservative and is intended for single use; bacteriostatic water is built for the opposite scenario, where a multi-dose vial will be accessed again and again.

The History of Bacteriostatic Water

Benzyl alcohol has been used as a pharmaceutical preservative since the early twentieth century and appears in a long list of multi-dose injectables, from vaccines to insulin preparations. The 0.9% concentration became the standard for bacteriostatic diluents because it is effective against a broad range of organisms at a level that is generally well tolerated by the tissue. As lyophilised peptides and recombinant proteins moved from laboratory benches into wider research use in the 1980s and 1990s, bacteriostatic water became the default reconstitution medium for multi-dose vials. Its role is purely supportive: it carries no active compound and is judged entirely on purity, preservative accuracy and container integrity.

How It Works

The water is purified and sterilised, then combined with benzyl alcohol to a precise 0.9% concentration. When a peptide powder is dissolved, the water restores the solution volume and the benzyl alcohol begins suppressing microbial proliferation. Because the preservative is bacteriostatic rather than bactericidal, it does not sterilise a contaminated vial; it slows the growth of organisms introduced during handling. That is why technique still matters: swabbing the stopper, using a fresh needle and storing the vial correctly all remain part of responsible research practice.

What the Research Shows

• Reconstitution studies consistently show that peptide stability depends on pH, ionic strength and handling, not on the diluent alone.
• Benzyl alcohol at 0.9% is the most widely studied preservative concentration for multi-dose pharmaceutical solutions.
• Compatibility varies by peptide; some compounds are sensitive to preservatives and require preservative-free water.
• Container integrity and storage temperature are as important as diluent quality for maintaining potency.

Research Context

Diluent research focuses on three variables: sterility, preservative concentration and compatibility with the peptide. Benzyl alcohol is effective at 0.9 percent, but higher concentrations can denature sensitive proteins, and lower concentrations may not suppress microbial growth adequately. Studies of multi-dose vials also show that repeated puncture increases the risk of contamination even with a preservative present. Storage temperature and light exposure affect the stability of both the water and the dissolved peptide, which is why sealed vials are kept cool and protected until use.

Strength, Pack and Authentication

Hilma Biocare supplies this as a single 10 ml vial at the standard 0.9% benzyl-alcohol concentration. The vial is sealed with a rubber stopper and flip-off cap, then packed in a printed carton that states the product name, volume and preservative content. A scratch-off security code inside the box can be checked against the manufacturer's records, and the label prints the full specification so it can be matched to this listing before ordering.

Buying Bacteriostatic Water Online

Bacteriostatic water is one of the most searched reconstitution supplies in peptide research, and quality varies widely between sources. Buying a sealed, code-verified Hilma Biocare vial removes the guesswork around concentration and sterility. If you are searching for bacteriostatic water 10 ml, BAC water for peptide reconstitution or a trusted place to buy bacteriostatic water online, this page gives you the full specification, pack size, price and live stock status. Browse more Hilma Biocare peptide supplies at NotNatty.