PubMed Sikiric, P., Seiwerth, S., Rucman, R., Turkovic, B., Rokotov, D.S., Brcic, L., Sever, M., Klicek, R., Radic, B., Drmic, D., Ilic, S., Kolenc, D
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
Diabetes, Obesity and Metabolism , 25(6), 1534-1545
What it does is reduce local inflammation, support the maintenance of remaining tissue, and in some cases improve synovial health in a way that changes the pain experience meaningfully