www.pubmed.gov glutathione Glutathione! Vitamin C and glutathione supplementation:

For example, mesoporous polydopamine nanoparticles can be loaded with the mitochondria-protective peptide SS-31 and incorporated into hydrogels, achieving synergistic photothermal antibacterial effects and mitochondrial function maintenance in a diabetic mouse full-thickness wound model, resulting in 40% faster wound closure compared to controls and improved histological outcomes including enhanced re-epithelialization and collagen deposition (Table 2)

The evidence for ghk-cu topical should be weighed by study type, human relevance, route, product quality, and the limits of what has actually been demonstrated

Curr Opin Neurol

doi: 10.1371/journal.pone.0057387 37 DaneshiM.BorowiczP

August 2007

The results showed substantial reductions in melanin compared to placebo