A vial left at room temperature for extended periods, or one repeatedly exposed to light, will show a shorter usable shelf life than one stored correctly
FDA, helped formalize the categorization of biomarkers for regulatory and clinical purposes
(6) M H Rasmussen, J Frystyk, T Andersen, L Breum, et al (1994) The impact of obesity, fat distribution, and energy restriction on insulin-like growth factor-1 (IGF-1), IGF-binding protein-3, insulin, and growth hormone Metabolism, 1994 Mar, Volume 43 (Issue 3), Pages 315-9
[11] KPV , as proposed by Bhm et al., [1] may carry much of the anti-inflammatory potential attributed to the larger alpha-MSH molecule in laboratory models, potentially through reduction of NF-B and MAP kinase signaling and interactions with nitric oxide pathways
GLP-1 medications in the refrigerator will remain within safe temperature range for that same window