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Your body makes small amounts of this peptide in fluids and tissues, and published work suggests levels drop with age
GHK-Cu: The copper component of GHK-Cu warrants attention at high concentrations excess copper can be pro-oxidant
This small molecule compound demonstrates exceptional ability to block nicotinamide N-methyltransferase enzyme activity, preventing NAD+ depletion while activating sirtuin pathways associated with healthy aging and metabolic optimization
Human evidence is limited
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