Tea Tree Oil is well-known for its powerful antiseptic properties and ability to treat wounds. It is a potent antibiotic. Tea tree oil is very effective for acne prone skin because it soothes dry, flaky skin. It is also effective at treating dandruff and lice eggs. Tea tree oil treats fungal infections and kills parasites, making it popular for treating ringworm and athlete's foot. Many toothpastes and mouthwashes contain tea tree oil for its ability to fight bacteria. It's been shown to reduce gum bleeding and tooth decay.