Lyophilized vs Non Lyophilized Peptides: Key Differences Peptide Stability: How Long Do Peptides Last? This mistake ruins your peptides. Most degradation doesn't happen in the vial. It happens in storage. Heat. Light exposure. Improper refrigeration. Freezing when you shouldn't. All of it quietly breaks peptide structure BPC 157 Peptide Injection Kit 4 x 5 mg lyophilized Powder 4 x 2.5 ml Reconstitution Water 99% Made in USA COA Included in Kenya Whizz Proteins