Anyway, focus on the positives I guess
Cancer 104(8):1620-6, 2005
This is a cost-effective and reproducible technique that can be safely implemented in the clinical setting but is limited in its ability to differentiate between different ROS radicals [70,71,72]
Data were generated and/or analysed by the Proteomics Resource Center (RRID: SCR_017797), Electron Microscopy Resource Center, Bioinformatics Resource Center, Fisher Drug Discovery Resource Center and the Flow Cytometry Resource Center at The Rockefeller University

Room temperature storage: short shelf life Room temperature stability (lyophilized powder): Why room temperature is risky: Degradation accelerates dramatically 10C warmer = 2x faster degradation 20C warmer (room temp vs freezer) = 4x faster Moisture in air can affect powder Bacterial spores can colonize When peptides are at room temperature: During shipping (1-3 days typically) After delivery before refrigerating When reconstituting (brief exposure) Minimize room temp exposure: Refrigerate or freeze immediately upon receipt Don't leave out while reconstituting (work quickly) If traveling, use cooler with ice packs Never store at room temp intentionally Shipping concerns: Most peptides survive 1-3 days room temp shipping Hot summer shipping can damage peptides Request cold packing in summer Overnight shipping better than standard Use SeekPeptides to track peptide storage duration and get alerts when approaching expiration
But that might very well be one of magnesiums greatest benefits