Jungle formula maximum strength irf4 is an insect repellent that is specially formulated for visiting long haul and high risk disease places or simply if you need some extra protection if you are prone to bites it contains 50 deet and plant extracts as well as vitamin e to improve effectiveness and feel of the skin this handy and convenient gel provides up to 12 hours of maximum protection that is suitable for adults and children from 3 years of age new jungle formula insect repellent facto