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Found in grapefruit skin, it might be the first bug spray ingredient that actually smells good.
Nootkatone, which was discovered and developed by the Centers for Disease Control and Prevention (CDC), repels and kills ticks, mosquitos, and other biting bugs, and it can keep those pests away for several hours. Nootkatone is found in very small quantities in grapefruit skin and Alaska yellow cedar trees.
“According to the CDC, nootkatone kills pests in a unique and different way, which is very important for mosquito control operations,” David Brown, who has worked in mosquito control for more than 30 years and is technical advisor to the American Mosquito Control Association, tells Health.