When patients ask about GHK-Cu peptide benefits, they are usually referring to a cluster of clinically observed effects: better firmness, smoother texture, more even tone, and improved tolerance for procedures
Initially, leaves become mottled and chlorotic, gradually turning yellow and even falling off
Furthermore, in spite of considerable research efforts (Dixon et al., We propose a model describing the diverse roles of plant GSTs in the interactions of plant hosts with pathogenic microbes considering four different plant-pathogen interaction types (Table 1): (1) symptomless resistance (including basal resistance to bacteria and symptomless R gene-mediated resistance to viruses), (2) HR-associated resistance, (3) limiting susceptibility to systemic spread of pathogens and plant cell/tissue death (during infections by hemibiotrophic/necrotrophic fungi, bacteria, and viruses), (4) promoting susceptibility to biotrophic fungi and viruses (maintaining reduced conditions in infected non-necrotic plant tissues)
The debate turned largely on where the real risk sits