Protected from gastric acid by an enteric-coated capsule

Vitamin C, E, B12, folic acid, selenium, zinc and manganese are necessary for an optimal utilization of reduced L-glutathione 

Highly present in the liver, kidneys, pancreas, spleen and eyes, L-glutathione plays important roles

• in antioxidant defense, in nutrient metabolism,

• in regulation of cellular events (including gene expression, DNA and protein synthesis, cell proliferation and apoptosis, signal transduction, cytokine production and immune response, and protein glutathionylation

Low-protein diet, stress, high physical exertion, reduction diets, taking certain medications and in old age can cause glutathione deficiency.