Researchers developed a self-healing hydrogel containing a food-derived tripeptide (GHK) complexed with copper that was evaluated for infected wound healing properties in preclinical models. The hydrogel demonstrated antimicrobial activity against wound pathogens, promoted tissue repair processes, and maintained structural integrity through self-healing mechanisms. This study represents **animal model/in vitro evidence** of a potential wound treatment approach, with further clinical testing needed to establish safety and efficacy in human patients.