That copper binding is not incidental
In this regard, early skin-whitening compounds, including niacinamide and soybean extracts, are reported to interfere with this process
Multi-omics of the gut microbial ecosystem in inflammatory bowel diseases
et Coll
GHK-Cu is one of several copper-peptide complexes in the cosmetic ingredient literature, and its specific identity (tripeptide with the GHK sequence, copper(II) complex, the characteristic blue color and coordination geometry) distinguishes it within that broader cosmetic peptide family
Chicory root fibers, with their prebiotic properties, selectively nourish beneficial bacteria like Bifidobacteria in the gut, producing metabolites that are important for the gut-brain axis, she says