I dont really care what anyone chooses to put on thier body, but i really wish people were scientifically literate to assess information. When governments try and combat a insect or mite bourne disease they use multiple methods and multiple differant chemicals. Nothing is 100% safe. What works is very dependant on what your enemy is. Ticks are the most worrying disease victor in the UK. Hormone distruptors like deet dont work well at all against them, as ticks dont use smell to locate their prey, they find it by movement and warmth. Permethrin treated clothing works, it does not work if applied to the skin. p-methane 3,5diol [the stuff in lemon eucalyptus] is effective at repeling mosquitos. Neem oil has a wide and effective use as a biopesticide. I am not going to bore you lot with links to proper scientific papers because if you that interested in what you actually use you would already know how to check facts. I can see this thread desending into the same old same old bigots that dont read links unless they are aimed at daily mail readers.