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Copper toxicity in humans is generally associated with chronic ingestion of large amounts, contaminated water, occupational exposure, or genetic disorders of copper handling not with cosmetic peptide serums applied to the face
10.1242/dev.01209 Development 68 HamanoueM.TakemotoN.MatsumotoK.NakamuraT.NakajimaK.KohsakaS
GHK-Cu : This copper peptide supports skin regeneration, wound healing, and anti-inflammatory effects, making it a good partner for FOXO4-DRI in anti-aging protocols
Most users report subtle energy improvements within the first week
They still support lab studies on its role in cell metabolism
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