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Bacteriostatic Water research vial from Prime Bio Group
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Bacteriostatic Water

Reconstitution water, syringe and needle included. $12 — order it with the vial, not after.

For research use only · not for human consumption

Single unit$12Order at Prime →
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Orders are placed, processed, and shipped by Prime Bio Group. Fresno Peptide Lab does not stock or sell product — we may earn a commission at no extra cost to you.

Independent research on Bacteriostatic Water. Our sister publication Peptides Uncaged maintains a plain-English research guide covering mechanism, the published literature, and how vendors are scored on purity and COA transparency. It is written independently of any lab. How to read a COA is worth ten minutes before your first order.
The research

What Bacteriostatic Water is being studied for

This preparation of sterile water and benzyl alcohol (BnOH) allows repeated withdrawals to be made from a single 30mL plastic vial. Hospira, the world’s leading manufacturer and supplier of bacteriostatic and sterile water, advises that once a vial of bacteriostatic water is open, the preservatives will prolong its life for up to 28 days.

After this period, the vial should be discarded. The difference between bacteriostatic water and sterile water is that other sterile waters for injection do not contain a bacteriostatic agent. Bacteriostatic Water for Injection, USP is a sterile, non-pyrogenic, sterile water that contains 0.9% benzyl alcohol (9mg/mL) added as a bacteriostatic preservative.

Bacteriostatic Water can be used multiple times up to 28 days once opened. Pfizer recommends that after this time you must discard the vial.This preparation of sterile water and benzyl alcohol (BnOH) allows repeated withdrawals to be made from a single 30mL vial. Hospira Worldwide now Pfizer injectables is the world’s leading manufacturer of bacteriostatic water, Pfizer injectables recommends that once the vial of bacteriostatic water is open the preservatives will prolong its life for up to 28 days and that after this period of time the vial should to be discarded.

Summary of published preclinical and clinical literature, provided for research context only. Not a claim of efficacy and not medical advice.

Common questions

Bacteriostatic Water — FAQ

What is Bacteriostatic Water?

Reconstitution water, syringe and needle included. $12 — order it with the vial, not after.

What formats does Bacteriostatic Water come in?

Prime Bio Group supplies Bacteriostatic Water as supply. Available options: Single unit at $12.

Is there a certificate of analysis for Bacteriostatic Water?

Yes. Prime Bio Group is a physician-owned lab and provides a certificate of analysis on every batch. A COA reports identity by mass spectrometry and purity by HPLC — if you are not sure how to read one, our guide on reading a certificate of analysis walks through it line by line.

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