Mortein is an Australian brand of household insecticide owned by the British company Reckitt. Together with its sister product Aerogard, a popular insect repellent, Mortein is widely used in Australia and is marketed internationally. It is also available in New Zealand, India, Pakistan, Fiji, and the Comoros.Mortein, developed and made in Australia, has been the leading brand of household insecticide in Australian homes for over 100 years.Fortunately, regular use of Mortein for pest control in the home will not be harmful as long as all instructions on the product packaging are followed. In general, this means using the product only for the specific purpose it is designed for – and only for the pests it is recommended to use against.