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
Turmerics main component is curcumin, which has been shown to potentially assist in restoring adequate levels of glutathione and improve the activity of glutathione enzymes
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Reusing syringes Always use a fresh, sterile syringe for each reconstitution
However, results vary, and it should be viewed as a holistic skin-health supplement rather than a cosmetic quick-fix
It was originally isolated from human plasma in 1973 and is one of the most extensively studied copper peptides in published research literature
