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Based on the current level of evidence, other authors have also suggested the use of oral or topical glutathione as an adjunctive therapy for facial melanosis
GHK-Cu is a copper-binding peptide studied for skin regeneration and anti-aging pathways
Accelerated wound-closure rates and improved granulation-tissue quality in rodent and pig skin models
That substitution is thought to shift the peptide's affinity more specifically toward hair follicle cells, rather than toward the broader tissue-repair profile of GHK-Cu
Angeli JPF, Schneider M, Proneth B, Tyurina YY, Tyurin VA, Hammond VJ et al (2014) Inactivation of the ferroptosis regulator Gpx4 triggers acute renal failure in mice