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PLoS One 2013, 8: e81170

In inflammatory conditions, it helps normalize NO levels to prevent excessive oxidative stress

However, these results are contradictory to the results published previously [33], which revealed that using SFZN with high glucose induced endothelial dysfunction reduced the damage in the vascular endothelium by activating various mechanisms, including the Nrf2 antioxidant pathway

A follow-up pilot study by Sinha et al

This makes it one of the more popular systemic skin lightening molecules

Advise on monitoring parameters when using GHK-Cu supplements Check liver and kidney function, serum copper and ceruloplasmin, and CBC prior to and during use