Works - even in the Borneo jungles!
I was concerned about mosquito born diseases and other bitey insects for our planned trip to Borneo, so I researched non-chemical insect repellents. Mosi-guard had great reviews and scientific research to back it up. So I bought some for our trip and was extremely pleased - it even worked at repelling the voracious leeches in the jungle. I have used this ever since - in Cape York, the Kimberley and in the backyard! It just works.