Reconstitution & Storage Guide

Most research peptides arrive as a lyophilized (freeze-dried) powder in a sealed vial. Reconstitution is the process of adding sterile bacteriostatic water to dissolve the powder back into an injectable solution. Use a clean insulin syringe to draw your desired amount of BAC water, insert the needle through the rubber stopper, and allow the water to run gently down the side of the vial. Never squirt water directly onto the powder cake, as the force can damage the peptide bonds and reduce potency.

After adding the water, gently swirl the vial in slow circles until the powder is fully dissolved. Do not shake vigorously. The solution should be clear and free of visible particles. If the solution appears cloudy or contains floaters after gentle swirling, do not use it. Label the vial with the peptide name, concentration (e.g., 5mg in 2mL = 2.5mg/mL), reconstitution date, and expiration date. Most reconstituted peptides remain stable for 3-4 weeks when stored properly in the refrigerator.

Storage conditions directly impact peptide stability. Lyophilized (unreconstituted) peptides should be stored in a freezer at -20C and can remain stable for years. Once reconstituted, peptides must be refrigerated at 2-8C and protected from light. Never freeze a reconstituted peptide, as ice crystal formation can destroy the molecular structure. For travel, use an insulated cooler with ice packs, keeping the peptide cold but not frozen. Always transport vials upright to prevent the rubber stopper from contacting the solution.