This poor absorption profile means that patients taking standard glutathione capsules must consume massive doses over many months to see even marginal increases in intracellular antioxidant levels
A 2021 study showed liposomal glutathione achieved 14-20% reduction in oxidized/reduced GSH ratio
Glutathione is often called the "master antioxidant" because of its central role in cellular health and detoxification
However, the practice of using glutathione for PD was not widespread, because it had to be administered directly into the veins (IV), necessitating clinic visits and medical staff inserting needles for proper administration
This is achieved by scavenging PM2.5-induced ROS, inhibiting the p38 MAPK pathway, and activating the PI3K/Akt pathway, thereby attenuating pulmonary microvascular endothelial permeability and leukocyte infiltration (Choi et al., 2019)
In contrast, administering a lower dose of 200 mg/kg NAC was insufficient to prevent mortality (Fig