glutathione powder for skin pure L-Glutathione Reduced Form 99.9 % care formulation Skin Fuel Pro+ Strawberry Flavor

Avoid layering GHK-Cu with strong actives like retinoids or AHAs in the same routine to reduce the risk of irritation

Because of the substantial amounts of brain glutathione and its rapid turnover under homeostatic control, we hypothesized that glutathione is a relevant reservoir of glutamate, and could influence synaptic excitability

Key publications: 'Tripeptide in human serum which prolongs survival of normal liver cells' (1973), 'Growth-modulating plasma tripeptide may function by facilitating copper uptake into cells' (1980, Nature), 'The human tri-peptide GHK and tissue remodeling' (2008), 'GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration' (2015), 'Regenerative and Protective Actions of the GHK-Cu Peptide' (2018)

doi: 10.23937/2474-3658/1510121 62 Di MarcoF.FotiG.CorsicoA

Both ingredients support skin barrier function through different mechanisms, creating complementary benefits

GHK-Cu Vial Lyophilized copper-peptide complex for laboratory reconstitution