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Kumar R, Lee SG, Augustine R, Reichelt M, Vasso DG, Palavalli MH, Allen A, Gershenzon J, Jez JM, Bisht NC (2019) Molecular basis of the evolution of methylthioalkylmalate synthase and the diversity of methionine-derived glucosinolates
Topical GHK-Cu serum shelf life Pre-made commercial serums: Usually 6-12 months unopened 3-6 months after opening Check manufacturer recommendations Refrigerate after opening extends life DIY serums (mixing powder with carrier): Shorter shelf life than commercial 2-4 weeks typical (no preservatives) Must refrigerate Discard if color changes Factors affecting topical shelf life: Preservatives: Extend significantly pH: Neutral pH more stable Carrier: Some better than others (hyaluronic acid, glycerin good) Storage: Cool, dark, sealed Contamination: Sterile technique critical Best practices for topical GHK-Cu: Buy small bottles (use within 3-6 months) Refrigerate after opening Don't double-dip (pour into hand, don't touch dropper to skin) Watch for color changes (brown = oxidized) Replace every 6 months even if looks fine See our how to reconstitute peptides , bacteriostatic water for peptides , and how long reconstituted peptides last in fridge
[DOI] [PMC free article] [PubMed] [Google Scholar] 26.Gujam FJ, Going JJ, Edwards J, Mohammed ZM, McMillan DC
Mirroring our flow cytometric analyses (Fig
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