Storage guidelines for reconstituted peptides: Refrigerator storage (2-8C): 2-4 weeks recommended maximum Freezer storage (-20C): Possible but not recommended due to freeze-thaw damage Peptides containing Met, Cys, or Trp have shorter shelf life due to oxidation Peptides containing Asn, Gln are more prone to degradation in solution Create multiple aliquots to avoid repeated freeze-thaw cycles if freezing is necessary Note: We recommend using reconstituted peptides within 2 weeks when possible, as potency gradually decreases over time
Ketteler, M., Rothe, H., Krger, T., Biggar, P
My order arrived warm, or without ice packs is that a problem
Protect from direct sunlight
No foam that does not dissipate
Recent FDA actions include interim category lists that restrict or preclude the use of certain bulk drug substances in compounding unless the active pharmaceutical ingredient is listed or the product is being studied under an IND