It's made with Witch Hazel and a combination of Essential Oils that work to keep the mosquitos away..
I am a huge advocate of what we put on our skin (as to why I wear rubber gloves when I clean). Our skin soaks up everything we put into, therefore it goes into our blood stream.
Using products with synthetic chemicals as mosquito repellent may not be the best move if you want to protect your skin from any potential hazard. Using a natural repellent, such as essential oils, is a much safer method to repel insect bites without harmful side effects.