Key Rules to Avoid Peptide Degradation
1. Prevent Freeze-Thaw Cycles
Repeated freezing and thawing of reconstituted solutions shears peptide bonds and leads to precipitation and bio-inactivation. Once mixed with BAC water, store strictly in the refrigerator (2°C–8°C).
2. Light Protection
Light-sensitive residues (such as Tryptophan, Tyrosine, and Methionine) undergo photo-oxidation. Store peptide vials in amber containers or opaque freezer boxes.
3. Moisture Condensation Prevention
When removing lyophilized vials from -20°C freezers, wait 15–20 minutes before opening the cap to prevent atmospheric moisture from condensing inside the vial.