Real Peptides Bacteriostatic Water 10ml: Review

Real Peptides Bacteriostatic Water 10ml is a USP-grade sterile water product containing 0.9% benzyl alcohol, priced at $4.80 per vial. This is an essential supply item for peptide reconstitution. The product ships from the United States within 24 hours. We reviewed the listing, assessed the specifications, and evaluated it against the requirements for proper peptide preparation.

Overview

Bacteriostatic water is sterile water that contains a small amount of benzyl alcohol, which acts as a preservative to inhibit bacterial growth. This allows the water to be used for multiple draws over a period of up to 28 days, unlike sterile water for injection which must be discarded after a single use. Bacteriostatic water is the standard solvent used to reconstitute lyophilized peptide powders in research settings.

Real Peptides offers this item as a USP-grade product with 0.9% benzyl alcohol concentration. The USP designation means the product meets the quality standards established by the United States Pharmacopeia. At $4.80 per 10ml vial, this is one of the most affordable bacteriostatic water options available from a peptide vendor. For guidance on how to use bacteriostatic water with peptide vials, visit our reconstitution calculator.

Why Bacteriostatic Water Matters

Proper reconstitution is a critical step in peptide research. Using the wrong solvent or contaminated water can compromise the integrity of the peptide and introduce variables that affect experimental outcomes. Bacteriostatic water provides a multi-use solution that maintains sterility over the typical 28-day use period of a reconstituted peptide vial.

Researchers working with lyophilized peptides such as BPC-157, MOTS-c, or other research compounds should always use bacteriostatic water rather than tap water, distilled water, or plain sterile water when multiple draws from a single vial are planned. For more information on peptide preparation, see our peptide buying guide.

Our Verdict

Our editorial team rated Real Peptides Bacteriostatic Water at 4.5 out of 5. Category scores: Testing 4.5, Purity 4.5, Labeling 4.5, Value 4.5. The value score is the highest among all Real Peptides products we have reviewed, reflecting the $4.80 price point which makes this one of the most affordable USP-grade bacteriostatic water options on the market.

The only limitation is the single 10ml size with no bulk discount available. Researchers who go through multiple vials may find this inconvenient, though the low per-unit cost partially offsets this concern. For a full list of peptide supply vendors, visit our peptide brands directory.