One of Amazon's best-selling bug sprays is a secret weapon for campers and hikers, offering an odorless and long-lasting solution to keep bugs at bay. Sawyer Products Premium Permethrin Insect Repellent is a synthetic compound that mimics a chemical found in chrysanthemums, effectively repelling mosquitoes, ticks, and other insects by attacking their nervous system. It's available in various formats, from a 9-ounce aerosol can to a 24-ounce spray bottle, and provides protection for up to six weeks or six washes. This makes it ideal for long camping trips or regular hikers. The spray is scentless once it dries, won't stain clothing, and isn't washed away by sweat or water. It has received over 40,000 reviews with a 4.6-star rating, with one reviewer praising its effectiveness in tick-prone areas. However, it's important to apply the spray in a well-ventilated area and not wear treated items until they're completely dry. The product is a handy tool for outdoor enthusiasts, but it's crucial to use it properly to ensure its effectiveness and safety.