USP-grade bacteriostatic water with 0.9% benzyl alcohol. Multi-dose safe for 28 days. Essential for peptide reconstitution. Available as Sterile solution. Sold in 3 mL vial units. Every batch is independently third-party tested: HPLC purity confirmed at ≥99%, with mass spectrometry identity verification. A batch-specific Certificate of Analysis (COA) ships with every order. US-based supplier, ships within 24 hours.
Bacteriostatic Water
3 mL vial · Sterile solution
USP Grade
Pharmaceutical standard production
Benzyl Alcohol
0.9% bacteriostatic preservation
28-Day Safe
Multi-dose after first puncture
Sterile
Clean reconstitution guaranteed
For research use only. Not for human consumption, veterinary use, or clinical application. Not evaluated or approved by the FDA for any therapeutic or diagnostic purpose. By purchasing, you confirm you are a qualified researcher acquiring this compound for legitimate in-vitro or laboratory research.
Research Guide
Bacteriostatic Water: The Reconstitution Science
Peptide reconstitution is only as reliable as the water you use. Bacteriostatic Water for Injection (BWFI) contains 0.9% benzyl alcohol.
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Use our free peptide calculator to get your exact syringe mark, BAC water volume, and dose count.
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Every batch of Bacteriostatic Water is run through High-Performance Liquid Chromatography. The chromatogram confirms purity percentage and identifies any impurity peaks. Our minimum standard is ≥99% by HPLC, verified by accredited third-party laboratories on every production batch.
Mass spec confirms the molecular weight of Bacteriostatic Water matches the theoretical value exactly. This verifies the compound identity, confirming it is not a substitute or mislabeled product.
Endotoxin testing ensures the compound is free from bacterial contamination. Combined with HPLC purity and MS identity confirmation, this is the full three-point verification used by accredited research labs.
Want to understand how to read a COA? Read our COA guide.
Read our in-depth research guide for Bacteriostatic Water: mechanism of action, relevant studies, research protocols, and storage guidelines.
Read the Bacteriostatic Water Research GuideBacteriostatic water contains 0.9% benzyl alcohol allowing safe multi-dose use for up to 28 days.
Add 1–2mL BWFI per 5–10mg peptide vial.
Yes — BWFI is compatible with all lyophilized peptides listed here.
A 3mL vial provides multiple reconstitutions. Multi-dose safe for 28 days after first puncture.
Yes. USP-grade bacteriostatic water produced to pharmaceutical standards.
More questions? Contact our team or visit our full FAQ page.
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