Keep cool, dry, and away from direct light
Final thoughts GHK-Cu shelf life varies dramatically by form and storage conditions - lyophilized powder maintains 18-24 months frozen or 12-18 months refrigerated but degrades in just 2-4 months at room temperature, while reconstituted solution lasts merely 28-30 days refrigerated with bacteriostatic water and should never be frozen as ice crystals destroy peptide structure
Its a high-risk gamble for cosmetic goals (WebMD)
L.SabinR.FrahlerK.HarrisC.PetrikoB.et al (2011)
Its so unregulated that when someone goes to a med spa or some kind of clinic to get this kind of treatment, you dont really know what youre injecting. If staff are poorly trained in injection techniques, There is a risk for infection, such as fatal sepsis [blood poisoning], she adds
How Does Glutathione Work in Skincare