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ghk-cu tolerance desensitization downregulation effectiveness over time Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance | Sports Medicine Tripeptide–copper complex GHK‐Cu (II) transiently
Description
Though rare, they can be serious if ignored

Long-term or repeated use may increase the risk of bone fractures, vitamin B12 deficiency, or gut infections

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All opinions are our own based on research and testing.
