Hedera Helix Extract Mauvais Irritant No known benefits Hedera Helix Extract at a glance Commonly known as English ivy extract Contains phytosterols and flavonoids Also a source of skin-irritating falcarinol Research has shown allergic reactions to cosmetics containing this ingredient Hedera Helix Extract description _Hedera helix_ is more commonly known as English ivy. It can be a skin sensitizer due to its astringent properties, especially for those who suffer from allergies or have dry skin conditions. Compared to other allergenic or sensitising plant extracts, English ivy has a lower risk of causing a reaction. Related ingredients: English Ivy Extract