Hydroxysteroid Oxidoreductase
INCI: Oxidoreductase
Reviewed by Emma · Last updated 14 Aug 2026
Also known as: Oxidoreductase
A large group of enzymes Blocks oxygen from generating environmental damage
EWG Safety Score
What Is Hydroxysteroid Oxidoreductase?
Hydroxysteroid oxidoreductase are a large group of enzymes that block oxygen in different forms from generating environmental damage.
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Licorice … Stem Extract
Plant extract with antioxidant properties to help protect skin from environmental stress
3-Ethylhexylglyceryl Ascorbate
A stabilised vitamin C derivative that works as an antioxidant and humectant
3-Glyceryl Ascorbate
A stabilised form of vitamin C that works as an antioxidant and hydrating agent
3-O Ethyl Ascorbic Acid
A more stable derivative of pure vitamin C Capable of helping fade dark spots
4-Butylresorcinol
A tyrosinase inhibitor that works to reduce melanin production at the source
4-Isobutylresorcinol
A synthetic antioxidant that helps protect skin from oxidative stress and environmental damage
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