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179 Three additional observational studies were retrieved in the 2014 update literature review
For convenience and needle aversion : Oral GHK-Cu is the easiest option, but understand that systemic benefits will be significantly limited by poor bioavailability
Because AHK-Cu and GHK-Cu share a copper-binding backbone but differ in amino acid sequence, many labs use AHK-Cu as a comparison compound when mapping which effects are copper-driven versus sequence-specific
#1 Rated Research Peptide Supplier How Does GHK-Cu Work
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