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"GHK influenced the expression of about 4,000 human genes, shifting their expression from a diseased or aged state toward a healthier profile." Pickart L., Vasquez-Soltero J.M., Margolina A

Cys is a sulfur-containing amino acid involved in sulfur compound metabolism

Hepatocyte-specific Gclc deletion leads to rapid onset of steatosis with mitochondrial injury and liver failure

The duration of side effects depends on the individuals health, dosage, and body response
