Store lyophilized (dry) peptides cold, dark, and dry, in a freezer for long-term storage. Store reconstituted peptides in the refrigerator. In every case, avoid heat, direct light, and repeated freeze-thaw cycles.
Storing lyophilized peptides
In dry, lyophilized form, peptides are at their most stable. For long-term storage they are best kept in a freezer, protected from light and moisture. For short periods, a cool, dark place is generally fine.
Storing reconstituted peptides
Once you reconstitute a peptide, the clock starts. A dissolved solution should be refrigerated, kept out of light, and used within its stable window. Using bacteriostatic water helps limit bacterial growth during that period.
Browse research-grade peptides
Every Axis compound is third-party tested to 99.4%+ purity, with a certificate of analysis on every batch.
What to avoid
- Heat: keep peptides cold; warmth accelerates degradation.
- Light: store in the dark.
- Freeze-thaw cycles: repeatedly freezing and thawing a solution stresses the peptide.
- Moisture: keep dry powder sealed and dry.
Key takeaways
- Lyophilized peptides: cold, dark, dry; freezer for long term.
- Reconstituted peptides: refrigerate and use within their stable window.
- Avoid heat, light, moisture, and repeated freeze-thaw cycles.
- Bacteriostatic water helps limit contamination once reconstituted.
A note on research use
The peptides supplied by Axis Peptide Labs are reference compounds for laboratory and research use only. They are intended for qualified researchers working in academic, institutional, and analytical settings. They are not drugs, foods, cosmetics, or medical products, and they are not intended for human or veterinary consumption. Documented identity and documented purity are what matter most when sourcing a compound, both of which are published on the Axis certificates of analysis page.
