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Reconstitution: preparing a peptide with bacteriostatic water

Lyophilised research peptides are dissolved before use in the lab, usually with bacteriostatic water. This note explains the basics.

Reconstitution: preparing a peptide with bacteriostatic water

What bacteriostatic water is

Bacteriostatic water is sterile water with 0.9 percent benzyl alcohol. The benzyl alcohol slows bacterial growth, so a dissolved solution stays usable in a research setting longer than with plain sterile water.

Dissolve gently

The liquid is added along the wall of the vial, not sprayed directly onto the powder. The vial is then left to stand or swirled softly. Do not shake, because peptides are sensitive to mechanical force.

Research use only

Reconstitution belongs to laboratory and research work. The information here is general and does not describe use on or in humans or animals.

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