Once reconstituted with Bacteriostatic water and kept refrigerated, many peptides remain stable for a period of weeks. The exact window depends on the specific peptide and how well it is stored.
What determines the window
Several things affect how long a reconstituted peptide lasts:
- Temperature: refrigeration is essential; heat shortens the window.
- Diluent: bacteriostatic water limits bacterial growth better than plain sterile water.
- Light: keep the solution out of direct light.
- The peptide itself: some sequences are inherently more stable than others.
Signs it has degraded
A solution that has gone bad may turn cloudy, change color, or show visible particles where it was once clear. Any of these is a reason to discard it.
Key takeaways
- Reconstituted, refrigerated peptides often stay stable for weeks.
- Temperature, diluent, light, and the peptide all affect the window.
- Bacteriostatic water and refrigeration extend usable life.
- Cloudiness, color change, or particles mean discard it.
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.
