Safer Brand BioNEEM insecticide and repellent is a unique insecticide and repellent that controls over 30 common insect pests. BioNEEM is formulated with azadirachtin, a natural Insect Growth Regulator extracted from the Neem seed. As an IGR, Bioneem disrupts and insects delicate hormonal balance, killing them before they molt into their next life stage.