Cutter Advanced is heavily formulated with Picaridin, which replaces DEET. It is as effective as DEET, but is odorless, light and clean, no sticky mess - Dermatologist tested and fragrance free. As effective as DEET because it works like DEET-it blocks the pores in your skin so it does not emit carbon dioxide, which attracts mosquitoes. Will not damage plastics or other synthetic materials - Does not need to be washed off when returning indoors - Repels mosquitoes, chiggers, biting flies, no-see-ums, gnats and fleas. Safe to use on kids!