Pseudoalteromonas Ferment Extract
Reviewed by Daisy · Last updated 18 Aug 2026
Also known as: Pseudoalteromonas antarctica, Antarcticine
A marine-derived ingredient that is a type of sugar-protein complex | Functions as a skin-soothing agent, antioxidant, and hydration-booster
Addresses
EWG Safety Score
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What Is Pseudoalteromonas Ferment Extract?
Pseudoalteromonas Ferment Extract is a marine-derived ingredient that is a type of sugar-protein complex (exopolysaccharide) produced by the non-pathogenic bacterium *Pseudoalteromonas antarctica*, which is found in the frigid waters of Antarctica. It is known for its ability to help skin recover from damage, soothe skin, and boost hydration. Research indicates that this ferment extract has antioxidant properties and helps to prevent water loss from the skin, which is a key factor in maintaining a healthy skin barrier. It is considered a beneficial ingredient for all skin types, particularly those with signs of aging or sensitivity.
Clinical Evidence & References
Published Research
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Marine Drugs, February 2023, pages 1-13 [https://www.mdpi.com/1660-3397/21/2/133]
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Marine Drugs, December 2007, pages 220-230 [https://doi.org/10.3390/md504220]
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Marine Drugs, November 2021, pages 1-12 [https://doi.org/10.3390/md19110646]
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Marine Drugs, December 2017, pages 1-16 [https://doi.org/10.3390/md15120377]
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Nature, Scientific Reports 7, November 2017, pages 1-13 [https://www.nature.com/articles/s41598-017-15971-9]
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Environmental Microbiology, September 2006, pages 1,523–1,533 [https://doi.org/10.1111/j.1462-2920.2006.01043.x]
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