Why does fingernail polish remover kill bugs and how does it do it?

Fingernail polish remover typically contains acetone or other solvents that can be toxic to insects. When applied, these substances disrupt the insect's exoskeleton, leading to dehydration and ultimately death. Additionally, the fumes can interfere with their respiratory systems, making it difficult for them to breathe. This combination of effects makes fingernail polish remover an effective, albeit harsh, insecticide.