showed increased epidermal and dermal thickness, skin hydration, skin elasticity, skin contrast, and collagen I synthesis A trial with 41 women applying GHK-Cu eye cream for three months reported reduced lines and wrinkles, improved skin density, and increased skin thickness, outperforming both placebo and vitamin K cream Comparable studies show wrinkle volume reductions around 60-70%, attributed to enhanced collagen cross-linking and decorin synthesis Key Benefits for Product Claims Formulators can support the following claims when incorporating GHK-Cu: Firmer feel and improved skin firmness Smoother skin texture with reduced wrinkles More even tone and enhanced radiance Improved skin hydration and barrier function Powerful antioxidant protection against environmental stressors and reactive oxygen species Reduction of visible redness Effects are gradual rather than instant, relying on consistent use to deliver meaningful improvements in skin density and overall appearance
capensis ) lacked GRAS status
For the full peptide profile, mechanisms, and research bibliography, see the GHK-Cu peptide page
This is the dermis starting to retain more moisture as glycosaminoglycan synthesis ramps up
Found in every cell, glutathione plays a role in immune function, gene expression, mitochondrial integrity, regulation of DNA and protein synthesis, and the detoxification of both endogenous and environmental toxins
About the Study Trial measured effect of glutathione supplementation at 250 mg/day and 1000 mg/day on glutathione levels in different blood components and exfoliated buccal mucosal cells over a six month period
