The lack of a beneficial effect of selenium supplementation was supported in a 2014 meta-analysis of randomized controlled trials (67)
However, its incomplete reduction leads to the formation of reactive oxygen species (ROS), such as hydrogen peroxide H 2 O 2 , superoxide radical anion (O 2 ), hydroperoxyl radical (HO 2 ), hydroxyl radical ( OH), nitric oxide (NO ) as well as singlet oxygen ( 1 O 2 ), peroxyl radical (LOO ), lipid hydroperoxide (LOOH), peroxynitrite (ONOO ), hypochlorous acid (HOCl) and ozone (O 3 ) (Birben et al., 2012)
Our glutathione levels are known to decrease with age and it's believed that the gradual decline of glutathione in your skin contributes to visible signs of aging
If you want a broader wellness overview, the Healthy Aging Supplements collection is a useful place to explore