glutathione comes from Most antioxidants come your diet. This one your body makes itself, and it's arguably the most important one you have. supports immune function, detoxification, brain health, and digestion. The problem Glutathione Synthase - an overview

Scar tissue from repeated injections in the exact same spot can reduce GHK-Cu absorption by creating a fibrous pocket that slows capillary uptake

Additionally, patients should ensure that the injections are administered in a sterile and controlled environment to minimize any risks

Chauhan D, Catley L, Li G, Podar K, Hideshima T, Velankar M et al

McCord et al., 2020

Additional roles confirmed included protein folding, cell cycle regulation, apoptosis, ferroptosis, and ascorbate metabolism

Watch for clinical signs of copper excess: new or worsening jaundice, Kayser-Fleischer ring formation on slit-lamp exam (rare but pathognomonic), unexplained hemolytic anemia, or rising transaminases without alternative explanation [2]