I love this citronella. I used 20ml mixed with 10ml of lemon verbena and then I turned around and did the same again but mixed it with 10ml of peppermint eucalyptus. Oh my, I can’t keep it in stock. It has such a lovely scent and boy does it keep the pesky flies and insects away. Mixing the fragrances does wonders. I am using 464. I have had no issues with any burning or any other problems and my customers love it.