DEET is a very common insect repellant used in the US. It began being used by the general public in 1957, and it is estimated that 30% of Americans use DEET annually. Products containing DEET range from lotions and sprays, to impregnated materials such as insect repelling wristbands. The CDC and the US EPA have concluded that use of DEET does not pose a threat to human health as long as the directions for the product are followed correctly. High concentrations (50-75%) can cause blisters, rashes, and irritation.
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