The dangerous chemical DEET is in a number of insect repellents in the market today. With heavy exposure to DEET and other insecticides, humans may experience memory loss, headache, weakness, fatigue, muscle and joint pain, tremors and shortness of breath. Be wary of using insect repellent containing DEET on children. Children are more susceptible to subtle brain changes caused by chemicals in their environment because their skin more readily absorbs them. Also, their still-developing nervous systems are more potently affected.  Source

All insect repellents in our store are totally DEET free and all natural, making them safe to use on babies and toddlers. They use essential oils and not only smell great - they are VERY effective and keep nasties such as mozzies, bugs and midgies at bay.