Recommendations for the storage and dissolution of peptides

Peptide storage recommendations

1.Peptides that need to be stored long-term should be kept in sealed dry bottles and preserved in lyophilized powder form, preferably stored at -20°C in the dark, with -80°C being even better.

2.It is advisable to aliquot the peptides to avoid product degradation caused by repeated freeze-thaw cycles.

3.Peptides containing Met, Cys, or Trp are prone to oxidation, so they should be stored in an anaerobic environment to prevent oxidation.

4.Before using frozen products, the bottles or tubes should be warmed to room temperature in a dry environment to prevent moisture from entering when opened, which could affect the product's efficacy.

Suggestions for peptide dissolution

1.The solubility of peptides is affected by their sequence and modifications. We recommend conducting a solubility test on a small amount of the peptide before dissolving all peptides.

2.You can first calculate the length of the peptide. Generally, peptides with fewer than 6 amino acids can dissolve in water; however, when the chain length exceeds 6 amino acids, their solubility mainly depends on the overall charge and hydrophobicity.

3.If the length of the peptide chain exceeds 6 amino acids, you can refer to the table below to calculate the total charge of the peptide.

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Post time: 2025-09-10