Lyophilized Peptide

Lyophilized peptides are far more stable than reconstituted solutions. They resist enzymatic degradation, oxidation, and microbial contamination, allowing storage at -20°C for months to years.

Research protocols typically call for adding bacteriostatic water (sterile water with 0.9% benzyl alcohol) to the lyophilized powder and gently swirling — not shaking — until dissolved. The reconstituted solution is then refrigerated.

Reconstitution is the process of dissolving a lyophilized (freeze-dried) peptide powder into a solvent (typically bacteriostatic water) to create a liquid solution for use in research procedures.