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Description
The published research literature describes GHK-Cu as exerting effects through multiple coordinated mechanisms: stimulation of fibroblast proliferation and migration

It depends on what you mean by stronger

The reduction in absorbance at 560 nm in the presence of antioxidants indicates the neutralization of superoxide anions in the reaction mixture (Bursal and Glin 2011)

Front Neurol 10:583 Perry TL, Berry K, Hansen S, Diamond S, Mok C (1971) Regional distribution of amino acids in human brain obtained at autopsy
