Pteris Multifida Extract Non classificato New ingredients Anti-age Pteris Multifida Extract at a glance Extract from a plant also called the spider brake fern + Hugeunot fern Long used in traditional Chinese medicine Has antioxidant properties Pteris Multifida Extract description _Pteris multifida_ extract is the extract from a plant also called the spider brake fern or Huguenot fern. Long used in traditional Chinese medicine, _Pteris multifida_ is now garnering attention for its potential use as an anti-aging skin care ingredient. As with most plant extracts, _Pteris multifida_ has antioxidant properties that can help skin fight free-radical damage over time. Of particular interest is the flavonoid content of this extract. Though it has been more thoroughly studied when used internally, researchers are investigating to see if it has the same sorts of abilities when applied topically. Usage levels of this fern extract in skin care haven’t been conclusively established; however, a patent from a Korea-based company lists a broad range of 0.001–30% for numerous cosmetic applications.