Peptides should be kept in a cool, dry place away from direct sunlight and humidity to preserve their stability. For long-term storage, we recommend freezing lyophilized (freeze-dried) peptides at or below –4°F (–20°C). This low temperature helps protect the peptide’s molecular structure, ensuring consistent results across research applications. To avoid degradation, always minimize exposure to air, moisture, and heat. Avoid repeated freeze-thaw cycles, and use only sterile equipment when handling to maintain purity.