TerraShield combines a proprietary blend of highly effective and safe essential oils in a base of Fractionated Coconut Oil to help ward off insects. A primary function of essential oils in plants is protecting against insects and other predators. Unlike other products that contain synthetic and toxic chemicals， TerraShield is a natural approach to managing exposure to biting insects. TerraShield's fresh， light citrus scent is wonderfully invigorating and can be used safely by everyone in the family. One application provides coverage that lasts up to 6 hours. Apply TerraShield to the legs， arms， and neck before going outdoors or diffuse on your patio to ward off pesky insects. Take TerraShield on camping trips or to outdoor events. Apply TerraShield directly to skin or use in a spray bottle. Rub or spray TerraShield around your door and window seals to deter insects from entering.