Antioxidant glutathione is naturally produced within the skin to prevent environmental damage.
Glutathione production declines as we age, but when applied topically via skincare, it can help restore the skin barrier and brighten, thanks to its three amino acids (cystine, glutamic acid and glycine) that interrupt tyrosinase, an enzyme that triggers hyperpigmentation. Since glutathione is naturally produced in the skin, it is well tolerated by many people.
