Before you automatically purchase a chemical repellent for mosquito, black fly, noseeum, or tick protection, do your research. There are hundreds of studies on the Internet that recommends the use of a variety of chemical concoctions to keep biting insects from landing on you.
However, these same studies all agree that the biting insects are firstly attracted (up to a half of a football field away) to the carbon dioxide that we all exhale when we breathe. Yet, none of these studies ever researches what will interact with a mosquito's receptors that camouflages their ability to sense carbon dioxide. To me it is simple enough: "If they cannot find you, they cannot bite you"!
Ever since 1910, when Obie Sherer mixed up his first batch of Ole Time Woodsman Fly Dope and sold it to a Maine logging camp foreman, Ole Time Woodsman has been protecting outdoor enthusiasts for over 100 years!
Read the Ole Time Woodsman Fly Dope Story.
Not complicated, just simple enough to work!