Mosquito repellent stickers work by releasing natural plant-based oils, such as citronella, geraniol, citronellol, and isopulegol, into the air around them. These essential oil components create a protective barrier that masks the human scents, like carbon dioxide and sweat, which attract mosquitoes. As a result, mosquitoes are confused and deterred from coming near. Unlike sprays or lotions, the stickers are portable, non-messy, and easy to use, providing a safe and effective alternative for mosquito protection.