Protandim is the only supplement clinically proven to reduce oxidative stress by an average 40%, slowing down the cell aging process to the level of a 20 year-old.* While conventional or direct antioxidants can neutralize only one free radical molecule, Protandim triggers the creation of enzymes that can each eliminate over a million free radical molecules per second without being used up.protandim-supplement55protandim91protandim-reviews82