It s about time - a DEET-free insect repellent that really works! Natrapel 12-hour provides 8 hours of protection from biting insects and 12 hours from mosquitos and ticks thanks to its CDC-recommended 20% Picaridin formula. Unlike ineffective DEET alternatives Picaridin is the only formula that consistently shows equal or better performance than DEET in independent clinical tests. Even better Natrapel 12-hour is completely safe on gear and will not melt jackets fishing line and other synthetic materials.The 6 oz. continuous spray bottle provides effortless even application.