Exogenous Glutatione is not advisable because is trimeric composed of 3 amino acids: glutamic acid + glycine + cysteine. When taken orally it is digested by proteases thus, it goes back to elemental form.
What the human body needs is Cystein in order to increase the amount of Glutathione in the body. Glutathione stands as the most powerful natural antioxidants that the human body can produce
The Molecular Mechanism of Cancer: How to prevent or treat through scientific interventions
BY: DR. JOSE M. OCLARIT