Commercial copper peptide serums (skincare products) Popular brands (The Ordinary, SkinCeuticals, Drunk Elephant, etc.): Follow manufacturer instructions (usually room temp) Refrigeration after opening extends life Keep away from heat and light Bathroom storage often too warm and humid High-concentration copper peptide serums: More sensitive to degradation Refrigeration strongly recommended Watch for color changes (indicates oxidation) Low-concentration products: More stable (less copper to oxidize) Room temp usually fine Refrigeration still beneficial Copper peptide + hyaluronic acid combinations Many products combine copper peptides with hyaluronic acid
[PubMed] [Google Scholar] 19.Mauricio T, Karmon Y, Khaiat A
The C16, C18 and C16OH acylcarnitine concentrations in the blood of congenital hypothyroid patients were significantly lower than that of the healthy control participants with C16, C18 and C16OH acylcarnitine concentrations of 1.24 0.43, 0.47 0.17 and 0.01 0.003 mol/L, respectively and the differences between the two groups produced significant P values of 0.0003, 0.002 and 0.001, respectively (Table 3)
Compounded versions are not FDA-approved and have not undergone clinical trials