Permethrin is a synthetic chemical used primarily as an insect repellent and insecticide. It belongs to a class of chemicals known as pyrethroids, which are designed to mimic the natural insecticidal properties of pyrethrins, compounds derived from chrysanthemum flowers. Permethrin is effective against a variety of pests, including mosquitoes, ticks, and fleas, making it popular for use in outdoor products and clothing. In addition to its use in personal protection, permethrin is also employed in agriculture to protect crops from insect damage. It is commonly found in household pest control products and is often used to treat fabrics, such as tents and clothing, to provide long-lasting protection against insects.