Polypeptide is hydrophilic, and water absorption will reduce the stability of peptide and the content of polypeptide. Please pay attention to the following contents: 1. Use desiccant and store it in a dry environment. Second, please put it in the freezer at -20℃ as soon as you receive it, and keep it as stable as possible. Third, avoid using freezers without automatic defrosting function. The changes of humidity and temperature will affect the stability of peptides. Fourthly, the external temperature during transportation will not affect the effectiveness and quality of peptides.

Long-term preservation method of 1. polypeptide;

Long-term storage (6 months to 5 years): freeze-dried powder, freeze-dried at -20℃;

Mid-term storage (0-6 months): liquid is frozen at -20℃ or frozen with 2-8℃ freeze-dried powder;

Short term preservation (