intravenous glutathione side effects IV Therapy: What You Need to Know Glutathione as a skin whitening

Glutathione has been found to be active against human immunodeficiency virus, parainfluenza virus, and herpes simplex virus type 1 infections.[] ROLE OF GLUTATHIONE IN CORONAVIRUS DISEASE 2019 Based on the literature search, low levels of glutathione and accumulation of ROS have been associated with the severe symptoms of coronavirus disease 2019 (COVID-19)

Kuchenreuther J

Skin allergies Atopic dermatitis and oxidative stress Atopic dermatitis is a chronic recurrent skin disease associated with elevated IgE levels, sensitization to common food and inhalant allergens, and skin barrier defects (140)

While it may indirectly support overall skin health through its role in glutathione synthesis, it is not typically used as a standalone ingredient specifically for pigmentation concerns