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A small amount of soreness is normal, but if you notice significant irritation, contact your healthcare provider

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Watch for Signs of Copper Toxicity While GHK-Cu is generally well tolerated, overexposure to copper (especially in individuals with impaired detox pathways) can cause symptoms such as: Nausea or gastrointestinal upset Headaches Mood swings or irritability Metallic taste in the mouth If any of these symptoms occur, discontinue use and contact your healthcare provider

J Neurosurg Spine 13:5-16, 2010

Inflammation, whether occurring within the context of chronic inflammatory disease or tumor-induced inflammation, significantly influences TME composition, particularly the plasticity of tumor and stromal cells [218]