The oil's invigorating scent helps improve focus, reduce mental exhaustion, and alleviate stress or fatigue. It acts as a natural insect repellent, particularly against mosquitoes, fleas, and ticks. Eucalyptus oil is often used in dental products like mouthwash and toothpaste due to its ability to kill bacteria and promote gum health. It helps stimulate the immune system and can be used to fight off infections and support overall immune health.