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AHK-Cu, or Alanine-Histidine-Lysine-Copper, is a naturally occurring tripeptide complexed with copper that has been investigated for its role in activating copper-dependent enzymatic processes and modulating extracellular matrix proteins involved in tissue structure and repair

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Skin research is one of the largest areas where GHK-CU is studied

Nonetheless, MRS studies investigating neurometabolite levels have yielded inconsistent results [25]

Although not a direct drug-drug interaction, increased GH/IGF-1 levels may raise blood glucose

In healthy adults, its activity declines with age, contributing to the progressive loss of synaptic density and cognitive flexibility that most people experience starting in their 40s and 50s