Studies demonstrate that liposomal glutathione supplementation increases natural killer cell activity and lymphocyte glutathione levels
Compared with normal hepatic function, the estimated ratio of the mean AUC 0 was 0.99 (0.891.11) in mild impairment, 1.01 (0.911.12) in moderate impairment and 1.11 (0.961.30) in severe impairment
doi: 10.3109/00365528909093067
Glutathione also plays a role in immune cell function, with research describing its involvement in T-cell proliferation, NK cell cytotoxicity, and the regulation of pro-inflammatory cytokine signalling
More cell biology would seem to be in order to address these issues
The breadth of systemic activity reflects the peptide's interaction with foundational signaling pathways (NO, VEGF, growth hormone receptor) that operate across nearly all tissue systems