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Unlike many cosmetic ingredients that work superficially, GHK-Cu appears to influence cellular function at the genetic level, potentially resetting aging cells to more youthful patterns of gene expression

Regulatory status and WADA Epithalon is supplied as a Research Use Only laboratory reagent

Legal Status and Availability BPC-157 is not FDA-approved for therapeutic use in the U.S., classified as a research chemical.[39][40] It is available through compounding pharmacies for educational or investigational purposes, often under veterinary or human research contexts

Some researchers report maintaining potency for longer periods, but 28 days is the evidence-based safety threshold

Skin and collagen research GHK-Cu is commonly studied for its role in collagen-related and skin-focused research environments, making it relevant for studies involving cellular response and tissue-related pathways