Repellents work by making people less attractive to mosquitoes, so they're less likely to bite you. It is completely natural -& made out of safe essential oils. It acts as a natural mosquito repellant on your skin. It does not have kerosene, chemicals or harmful preservatives. Just apply some on exposed skin before venturing outdoors - however some people may be allergic to certain natural products. Always do a patch test before use .Generally safe for kids -but do a patch test before use.