Bacteriostatic Water

The amount depends on your desired concentration. Common protocols use 1mL or 2mL per peptide vial. Using 1mL gives you a more concentrated solution (fewer units per dose), while 2mL creates a more dilute solution (easier to measure small doses). Always refer to your specific research protocol for the recommended reconstitution volume.

Reconstituted peptides in bacteriostatic water should be stored in the refrigerator at 2-8°C (36-46°F) and used within 28 days. The benzyl alcohol preservative keeps the solution safe from microbial contamination during this window. Some peptides may degrade faster than others, so always check your specific peptide's stability data.

Bacteriostatic water is compatible with the vast majority of research peptides. It works with all peptide products in our catalog. In rare cases where a peptide is sensitive to benzyl alcohol, the product documentation will specify an alternative reconstitution solvent.

Unopened bacteriostatic water should be stored at room temperature (15-30°C / 59-86°F) away from light. Refrigeration is not required for the water itself. However, once you've used it to reconstitute a peptide, the reconstituted solution should be refrigerated at 2-8°C.

Inspect the solution before each use. Bacteriostatic water should always be completely clear and colorless. Do not use it if you notice cloudiness, discoloration, floating particles, or if the rubber stopper appears damaged. Also discard if more than 28 days have passed since the first needle puncture, regardless of appearance.