Bug-Geroff answers the need for an effective, all natural way of repelling insects. Its essential oils and Shea Butter make it completely safe to use on sensitive skin and for young children or babies. The essential oils used in all products are citronella, geranium and lemongrass, which in themselves are effective insect repellents. However, the main active ingredient which makes the product so effective is Tagetes oil. Together these natural substances form a formidable deterrent.