Neem Oil Bad Irritant No known benefits Neem Oil at a glance Plant-derived ingredient, AKA Melia azadirachta oil Derived from the Melia azadirachta or Azadirachta indica tree Has emollient and antioxidant properties Can cause skin sensitization and signs of irritation Neem Oil description Neem oil is a plant-based cosmetics ingredient derived from the seeds and fruit of the _Melia azadirachta_, AKA _Azadirachta indica_, tree. Although neem oil has skin-beneficial properties, it also contains potent active compounds, like azadirachtin and nimbin, that can cause skin sensitization and signs of irritation. For more information, see the entry for Melia azadirachta oil. Related ingredients: Melia Azadirachta Oil