Containing 30% DEET, this EPA-registered formula allows the DEET to be released in a controlled manner, permitting longer-lasting performance once obtained only by high concentrations of DEET. This type of formula provides a high degree of protection against vector-borne diseases such as dengue fever, West Nile virus, and Lyme disease. It also provides effective protection from mosquitoes, ticks, chiggers, fleas, gnats, no-see-ums, and multiple kinds of flies (sand, deer, stable, and black flies).