long term effects of glutathione supplementation in Skin Aging and Tissue Regeneration: A Systematic Review Molecular Mechanisms, Redox Modulation, and Biomedical Implications 7 Surprising Glutathione Supplement Side
Description
But "works" depends entirely on using it correctly

[8] However, some studies suggest potential benefits among certain subgroups
An initial duplication, occurring after the divergence of lamprey, a jawless fish, was followed shortly after by a second duplication

Colloid Interface Sci Commun 14:812 Lyu C (2016) Rice noodles capable of nourishing faces and protecting skins and preparation method of rice noodles

Effect of 1 week of Sleep restriction on testosterone levels in Young Healthy men