Proper storage is critical for maintaining peptide integrity. Here's what every researcher needs to know. Optimal Storage: - Temperature: -20°C (freezer) - Protection: Keep in original sealed vial - Light: Store in dark or opaque container - Humidity: Keep desiccant packet if included Shelf Life: Most lyophilized peptides remain stable for 2+ years when stored properly. Optimal Storage: - Temperature: 2-8°C (refrigerator) - Container: Original vial, upright position - Handling: Use sterile technique Typical Stability: 2-4 weeks depending on the peptide Normal Variations: - Slight color variation between batches - Loose powder that moves in vial - Small cake or pellet at bottom Potential Concerns: - Visible moisture or wetness - Large clumps or unusual texture - Strong unexpected odor - Cloudy solution after reconstitution Peptides arrive with cold packs to maintain temperature. Upon arrival: 1. Inspect packaging for damage 2. Check temperature indicator if included 3. Transfer to appropriate storage immediately Note: Cold packs may arrive thawed—this is normal for transit times under 48 hours. Lyophilized peptides are stable at ambient temperature for short periods.
Storage and Handling Fundamentals
Essential guidelines for storing research peptides to maintain stability and integrity.