glutathione cycling The ascorbate/glutathione cycle Metabolic orchestration driven by GGCT:
Description
GHK-Cu is the repair signal your body quietly runs out of

If there are any issues with the shipment, they will send another one promptly

Glutathione is a naturally occurring antioxidant your body already produces, and it is well tolerated by most people

That advice comes from older laboratory research showing that free copper ions can accelerate the oxidation of pure L-ascorbic acid (vitamin C)
