walk-in lab glutathione (30) Glutathione-L – WP Pharma Labs
Description
Arch Intern Med (2009) 169:21427

The active group of glutathione is the thiol (-SH) group found in cysteine [52]

It's a statement of their legal status

However, this review will not consider this further as it has already been addressed elsewhere (Wu et al., 2021

Skin reflects what's happening inside the body

These enzymes convert the superoxide radicals into hydrogen peroxide radicals and transform reactive hydrogen peroxide into molecular oxygen and water [145]