glutathione cysteine & c benefits Liposomal Uses and Vitamin C and glutathione supplementation:

Mol Cell Endocrinol 439:2634

For example, oxidized cysteine (cystine) makes Salmonella enterica more sensitive to gentamicin by disrupting the intracellular redox balance, altered the GSH/GSSG ratio, raised ROS, and increased ferrous iron, which potentially fuels the Fenton reaction, all of which contribute to greater bactericidal activity

So does SubQ glutathione have any practical use

It helps support cellular protection, detoxification, immune balance, and energy production

This occurs naturally in our bodies and important in cell nuclear DNA repair and telomere maintenance

Finally, designing advanced nanocarriers with improved stability, controlled release, and enhanced tumor penetration will further accelerate the clinical translation of GSH-responsive nanomedicine