Ask any "old timer" outdoors person what brand of protection against mosquitoes, black flies, noseeums, and ticks that they recommend. My guess is probably 10 out of 10 would say, "Ole Time Woodsman Fly Dope, or Ole Woodsman Fly Dope, or just plain Woodsman Fly Dope."
In 1910 Obie Sherer was being chased from his favorite fly fishing spot in Maine by a horde of blood sucking insects he noticed a native American sitting peaceably by the stream without a biting insect in sight. In Maine's vernacular, I am sure he said to himself, "how come?"
Now over 120 years later, the formula that he derived from an old 1882 masking scent for hunters is still protecting lovers of the outdoors from biting insects. You see, back then the solution was simple: If a mosquito or black fly cannot detect you, then they cannot bite you.
Little did Obie Sherer know what science is proving today. Certain fragrances actually interferes with a biting insects' ability to detect the flume of carbon dioxide that a human or animal exhales when they breathe.
I always recommend that a person does the research before you spend your hard earned dollars. The proof is in the pudding!