This is the same compound as supplied to the UK Army infantry stationed around the world, to stop biting and irritation from insects. Suitable for use by anglers on the bank or for travellers visiting areas with a high risk of malaria and other insect transmitted diseases such as west Nile virus, yellow fever and dengue fever.The aerosol format provides up to 8 hours of protection, against the most common mosquito species (Culex). Scientifically proven to also provide active protection from ticks, horse flies, sand flies, black flies, midges and other biting insects.