Natrapel® Lemon Eucalyptus DEET-free formula provides up to 6 hours of protection from biting insects and ticks. This great protection formula has an active ingredient derived from a natural plant base (Oil of Lemon Eucalyptus) which provides a cool refreshing scent. Perfect for any type of travel, Natrapel 37ml easy application spray comes in an airplane friendly travel size. Be prepared for bug season with Natrapel Lemon Eucalyptus!