Natural insect repellents are substances derived from plants and other natural sources that help keep insects away without the use of synthetic chemicals. Common ingredients include essential oils like citronella, peppermint, and eucalyptus, which have been shown to deter mosquitoes and other pests. These repellents are often considered safer for humans and pets compared to conventional options. Many people prefer natural insect repellents for their environmental benefits and lower toxicity. They can be applied directly to the skin or used in diffusers and sprays. However, it's important to note that their effectiveness may vary, and they often require more frequent reapplication than synthetic repellents.