Cosmetic serums can be stored in the fridge for long-term storage, but will be stable for 2 years even at room temperature.

All the research peptides are in lyophilized powder form in vials. They can be stored in the freezer at -20 C for years with no significant damage to the structure. Once the peptide is reconstituted, it should be used within two months and it should be stored in the refrigerator between 2 and 8 C. Repeated thawing and freezing can be harmful and is not advised. After reconstitution, freezing and thawing once will not degrade the peptide. If a vial is not going to be used within 6 to 8 weeks, it would be ideal to freeze the product in single use portions and thaw it before using. Reconstitute the peptide with bacteriostatic water (or 0.6% acetic acid sterile water) for multi use. Sterile water can be used for single usage only.