Porphyridium Cruentum Extract
Reviewed by Kate · Last updated 18 Aug 2026
Also known as: Porphyridium cruentum, Red Algae, Algae
Derived from red algae | Has antioxidant benefits
Addresses
EWG Safety Score
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What Is Porphyridium Cruentum Extract?
Porphyridium cruentum extract is an ingredient derived from a type of red algae that many have antioxidant benefits.
There is research showing components of red algae contain the omega-3 fatty acid eicosapentaenoic acid, the omega-6 fatty acid arachidonic acid, and other skin-friendly ingredients such as polysaccharides. Whether or not the entire red algae extract provides benefit when applied topically on skin is not known.
Clinical Evidence & References
Published Research
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Bioseparation, September 2000, pages 299-306 [https://link.springer.com/article/10.1023/A:1011124624001]
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