Natural (Made with natural active ingredients). Repels up to 2 weeks - fresh scent. Kills fleas + ticks & larvae eggs. TropiClean Natural Flea & Tick spray kills fleas & ticks by contact. This natural essential oil blend contains nature's most powerful pest fighting ingredients, maximized with lemongrass oil for long lasting effects. Safe to use indoors and outdoors when used as directed. No pyrethrin, permethrin. No artificial colors or fragrances. Money back guarantee. TropiClean represents that this product qualifies for exemption from registration under the Federal Insecticide, fungicide, and rodenticide act (Fifra). This product has not been registered with the United States Environmental Protection Agency. TropiClean.com. For questions or comments, please write: Consumer Response, PO Box 414 Wentzville, MO 63385 Made in USA.