Coulston's Permethrin Insect Repellent is just what you need for camping, hiking, boating, or any other outdoor activity. Not only does this powerful insect repellent keep insects away, but it actually kills mosquitos, ticks, mites, and other insects upon contact. The active ingredient in Coulston's Permethrin Insect Repellent is permethrin, a synthetic chemical very similar to pyrethrum that is odorless and long-lasting. Simply spray this insect repellent on your tent, clothes, and other gear for long-lasting protection from insect pests. One application can last for up to 6 washes!