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Overuse Effects Using copper peptides too frequently or in high concentrations can lead to an overload of copper in the skin, potentially causing irritation and other adverse effects

The stiffening of intestinal tissue that occurs after repeated inflammatory episodes

Common age-related thyroid changes include: Reduced production of thyroid hormones Less efficient conversion of T4 into active T3 Increased thyroid hormone resistance at the cellular level Higher rates of autoimmune thyroid conditions Many people develop what is called subclinical hypothyroidism, where lab values technically fall within normal ranges, but symptoms clearly suggest thyroid dysfunction

The most consistently reported involve modulation of the nitric oxide (NO) system, upregulation of growth hormone receptor expression at local tissue sites, and promotion of angiogenesis via effects on VEGF and the FAK-paxillin pathway

GHK-Cu refers to the same tripeptide bound to a copper(II) ion (MW 401.91 g/mol)