Buy Bacteriostatic Water 3ml UK | Research Grade

Bacteriostatic water is sterile water for injection containing 0.9% benzyl alcohol as a bacteriostatic preservative. The preservative inhibits the growth of common bacteria, allowing a single multi-dose vial to be used safely across multiple withdrawal events over an extended period — typically 28 days from first puncture. It is the laboratory-standard solvent for reconstituting lyophilised research peptides because it preserves peptide stability while preventing microbial contamination of the reconstituted solution.

Sterile water for injection and sterile saline contain no preservative — once punctured, the vial is single-use and any reconstituted peptide solution has a substantially shorter usable window. Bacteriostatic water's 0.9% benzyl alcohol allows multi-dose research protocols from a single peptide vial across weeks of in-vitro work, which is essential for cost-effective research using small lyophilised peptide quantities.

Reconstitution volume depends on the target concentration of your research protocol. As a general starting point: 1ml per 5mg vial gives 5mg/ml; 2ml per 10mg vial gives 5mg/ml; 1ml per 10mg vial gives 10mg/ml. Always confirm volumes against your specific protocol — research concentrations vary widely. The 10ml vial supports approximately 5–10 standard reconstitutions depending on volume per vial.

Store unopened at room temperature, away from direct sunlight. Once the vial septum has been punctured, discard 28 days after first puncture in line with the bacteriostatic preservative's effective duration. Do not refrigerate the bacteriostatic water vial itself — refrigerate the reconstituted peptide solution.

Pharmaceutical-grade, sterile-filtered, supplied in a sealed glass vial with intact tamper-evident closure. Stocked in the UK and dispatched same-day from Manchester. Bundle with any peptide vial in a single insulated mailer to consolidate shipping and avoid a second delivery.