Not only does Sawyer Clothing Insect Repellent repel insects, but will actually kill ticks, mosquitoes, chiggers, mites and more than 55 other kinds of insects. Sawyer Permethrin repellent is for use on your clothing, tents and other gear. A single application of the Sawyer Clothing Insect Repellent lasts through 6 washings. Permethrin is odorless when dry. During the drying process it tightly bonds with the fibers of the treated garment. It will not stain or damage clothing, fabrics, plastics, finished surfaces, or any of your outdoor gear. Permethrin clothing treatments, when applied following Directions for Use, have been determined to have "spatial repellency" against mosquitoes. This means that mosquitoes will swarm around you, but not light on your treated clothing and bite.