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CSP analysis was used to observe the interaction sites based on changes in the surrounding chemical environment
The Hostynek and Maibach group at UCSF measured exactly this in 2011: human skin permeation of GHK-Cu as a function of skin layer, with the result that the peptide accumulates in the upper stratum corneum but does not pass through to viable epidermis or dermis in any meaningful quantity 4
Designed specifically for research, it provides a reliable way to explore therapeutic uses
And it doesnt just have reduced glutathione, an active form of glutathione that helps with liver health and enzyme activityit also has riboflavin (vitamin B2) to support digestion and energy production, COQ10 for heart and cellular health, and PQQ, another powerful antioxidant
There is no characterised dose-response curve for adverse effects
MRC/BHF Heart Protection Study of antioxidant vitamin supplementation in 20,536 high-risk individuals: a randomised placebo-controlled trial
