How to Make an Insect Repellent With Vanilla Extract. Vanilla extract can make a great insect repellent. Simply buy pure vanilla extract and follow these tips to make a simple solution using water. Pesky insects like mosquitoes, ticks, deer flies, black flies and gnats won't stand a chance against it.
Get a clean, shallow small container and add 1 tbs. of pure, clear, sugarless vanilla extract. Using vanilla extract that contains added ingredients, like sugar, may result in sticky skin and attract more insects.
Add 1 tbs. of water to the container. Stir the mixture so that the vanilla extract and water mix thoroughly.
Dip a cotton ball or another absorbent material into the mixture and wipe it on your skin. Make sure to treat all exposed areas.
Apply undiluted drops of vanilla extract to your neck, wrists and other pulse points.
Reapply the solution and undiluted vanilla extract drops at the first sign of its effectiveness diminishing. Using vanilla extract as an insect repellent usually works for approximately 30 to 45 minutes.