Storage & Stability
Estimate stability windows based on form, storage temperature, and solvent. Select options below — results update instantly.
Form
Storage Temperature
Solvent
Estimated Stability
2–5 years
ExcellentStability Factors
Lyophilised peptides at −20°C exhibit minimal chemical degradation — the optimal condition for long-term preservation.
Temperature fluctuations cause condensation, introducing moisture that accelerates hydrolysis even in powder form.
Desiccants absorb residual moisture in sealed containers, further slowing degradation pathways.
UV and visible light cause photodegradation of peptide bonds even at freezer temperatures.
Universal principles that apply regardless of compound or storage scenario.
Lower temperatures slow all degradation pathways. Each step up from frozen to refrigerated to ambient accelerates hydrolysis and oxidation per the Arrhenius relationship.
UV and visible light break peptide bonds through photodegradation. Opaque containers and foil wrapping block the wavelengths responsible for this breakdown.
Repeated freeze-thaw cycles cause ice crystal formation that physically disrupts peptide structures, leading to aggregation and measurable potency loss.
Benzyl alcohol (0.9%) in bacteriostatic water continuously inhibits microbial growth in solution, extending the reconstituted stability window significantly compared to preservative-free sterile water.
Exposure to air introduces moisture and microbial contamination, accelerating degradation. Oxidation-sensitive residues (methionine, cysteine, tryptophan) are particularly vulnerable.
Smaller volumes have higher surface-area-to-volume ratios, reducing ice crystal damage during freezing. Subdivided volumes also avoid repeated freeze-thaw exposure of the full quantity.
General estimates based on published peptide chemistry. Actual stability varies by compound, purity, and conditions. This tool presents storage science data for informational purposes only. It is not medical, scientific, or usage guidance.
