Mosi-guard Natural is one of the most effective ways of protecting yourself from biting insects. The active ingredient of Mosi-guard Natural is Citriodiol, a naturally occurring extract of lemon eucalyptus oil. Mosi-guard Natural is the world"s most widely used and successful natural insect repellent. It comes in five presentations, including a pump spray, roll-on, cream, stick and aerosol-spray, each offering the same level of protection. It is your choice which method of application you wish to use. As well as protecting against mosquitoes, Mosi-guard Natural also protects against sand-flies, ticks, midges and leeches.