Antioxidant Enzymes
The Compounds (3)
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Superoxide Dismutase
The body's first-line enzyme against superoxide radicals, built with copper, zinc or manganese; evidence that swallowed superoxide dismutase (SOD) supplements reach cells is limited.
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Catalase
An enzyme in nearly every cell that splits hydrogen peroxide into water and oxygen; the page weighs the gray-hair research against popular claims.
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Glutathione Peroxidase
A selenium-dependent family of enzymes that uses glutathione to defuse peroxides, studied in aging, disease and ferroptosis research mostly at the laboratory stage.
Read the deep dive →The three enzymes the body uses to neutralise reactive oxygen: superoxide dismutase, catalase and glutathione peroxidase. They are proteins, so swallowing them is not straightforward — each page addresses whether an oral product can reach anything at all.