According to the editors and researchers at Beautypedia  Neem has potential toxic effects  although it also has been shown to have antimicrobial properties  too Neem oil is approved as a pesticide in the United States  and they’ve found no reliable research proving neem extract or oil has any benefit for skin in terms of common skin types and concerns  though  says Beautypedia  you can find a fair number of studies on neem’s insecticidal properties for conditions like head lice and scabies