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Hostynek and colleagues quantified percutaneous absorption of the intact GHK-Cu complex through human skin in 2010, supporting bioavailability of the chelate as a unit rather than as separated peptide and copper
(Laboratory Humidity: 20%-60%
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By binding with copper, GHK ensures that this mineral is delivered efficiently to cells that need it for repair and regeneration
The GHK-Cu complex adopts a square-planar geometry, coordinated through the nitrogen atoms of the imidazole ring of histidine, the -amino group of glycine, and the deprotonated amide nitrogen of the glycine-histidine peptide bond
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