This in vitro study investigated copper complexes formed with hyaluronan conjugates of the peptide GHK (glycyl-L-histidyl-L-lysine) to evaluate their antioxidant, osteogenic, and angiogenic properties. The researchers found that these copper-peptide-hyaluronan conjugates demonstrated antioxidant activity and synergistic effects promoting both bone cell differentiation and blood vessel formation in cell culture models. This is an in vitro study and does not represent clinical evidence in human subjects.