The Insect Repellent - Expedition 50+ range contains a dual action formula which combines natural pyrethroids with DEET to provide a high level of protection against biting insects in all environments. The natural pyrethroids act as a bite inhibitor, discouraging actual biting insects including mosquitoes. Each application of Expedition 50+ will last for up to 10 hours. Re-application may be required in areas with high temperature and humidity.   Repels: Mosquitoes, midges, horseflies, sandflies, gnats, fleas, ticks and other biting insects. Use for: Jungle treks, long haul trips and high risk malarial areas.