TerraShield Outdoor Blend contains essential oils and other plant oils historically known to protect against environmental annoyances in a safe way. TerraShield Outdoor Blend is a safe formula that can be used by every member of the family, whether outdoors or throughout the home Uses Apply TerraShield to the legs, arms, and neck before going outdoors. Always pack TerraShield when you go on camping trips or to outdoor events.