Lifesystems Expedition+ Plus insect repellent repels mosquitoes, midges, horseflies, sandflies, gnats, fleas, ticks and other biting inseccts. It has a dual action formula which combines the effective repellent action of DEET to ward off insects, PLUS the insecticidal action of natural oils to stop insects that land on the skin from biting. Formulated to provide high-level protection in areas heavily infested with biting insects. Protection lasts for up to 8 hours. Read all instructions carefully.