Mark and Amy break down peptide storage: why freeze-dried powder is the stable form, what oxygen, moisture and light do to a chain of amino acids, and how quickly shelf life drops once water is added. They also cover the 28-day sterility rule, sprays, and why approved drugs like Mounjaro and Egrifta SV follow their own labels.
Peptides covered
Free tools
- Free reconstitution and dosing calculator: mypeps.info/calculator
Sources
- Peptide Storage and Handling — Biosyn, accessed Oct 2026. https://www.biosyn.com/faq/peptide-storage-and-handling.aspx
- Peptide Storage & Handling — ChemPep, accessed Oct 2026. https://chempep.com/?p=33545
- Peptide Storage and Handling — GenScript, accessed Oct 2026. https://www.genscript.com/peptide_storage_and_handling.html
- Handling and Storage Guidelines for Peptides — Bachem, accessed Oct 2026. https://www.bachem.com/knowledge-center/handling-and-storage-guidelines-for-peptides/
- Handling and Storage Guidelines for Peptides and Proteins — Merck Millipore, accessed Oct 2026. https://www.merckmillipore.com/GN/en/technical-documents/technical-article/research-and-disease-areas/cell-and-developmental-biology-research/handling-and-storage
- Advisory: Sterile Injectable Dispensing (Including Testosterone) — Massachusetts Board of Registration in Pharmacy, Dec 2023. https://www.mass.gov/doc/sterile-injectable-dispensing-including-testosterone-pdf/download
- What is the recommended storage for Mounjaro (tirzepatide) single-dose pen? — Eli Lilly Medical Information, accessed Oct 2026. https://medical.lilly.com/us/products/answers/what-is-the-recommended-storage-for-mounjaro-tirzepatide-single-dose-pen-311033
- Egrifta SV dosage and administration — Drugs.com, accessed Oct 2026. https://www.drugs.com/dosage/egrifta-sv.html
Where we buy
Amino Club publishes an independent lab report (COA) for every lot; see them on our lab reports page. Their products are sold for research use only, not for human use: aminoclub.com, 40% off with code MYPEPSINFO. This is an affiliate link, so we may earn a commission.
Educational information only, not medical advice. Talk to a licensed clinician before starting, stopping or changing any medication. Research-grade peptides are not FDA-approved drugs.