Proven 100% effective for 2 hours and 95.8% effective for 3 hours uses 6 naturally repelling oils at 25% total concentration (much higher than other natural repellents) deet-free gmo-free non-irritating allergy tested good for children and those with sensitive skin cedar and citronella oils repel ticks sweat and water resistant won?çöt damage clothing or equipment awarded ?ç£best gear?ç¥ by national geographic adventure cruelty-free