It sometimes drives me crazy when in certain areas flying insects are buzzing around my face and at times it seems as if they're trying to crawl into my ears
I've used skin so soft from Avon. Very inexpensive and the link is for the one that uses synthesized plant oil.
Copied from the REI website:
IR3535
Background: Developed in Germany by Merck in early 1980s; registered in U.S. in 1999. Chemical name: 3-[N-Butyl-N-acetyl]-aminopropionic acid, ethyl ester. Derived from the amino acid alanine.
Effectiveness: Potential duration of effectiveness:Up to 8 hours. Refer to product label.
Safety: From the EPA: “IR3535 has been used as an insect repellent in Europe for 20 years with no substantial adverse effects. Toxicity tests show that IR3535 is not harmful when ingested, inhaled, or used on skin.” The American Academy of Pediatrics has made no recommendation on the use of IR3535.