The active ingredient in cayenne pepper, however, is responsible for its spiciness is capsaicin, which can act as a deterrent for mice and other rodents. To use cayenne pepper to help repel mice, you would simply sprinkle it in areas where you have seen evidence or activity of these unwanted guests.

To recap, you can use cayenne pepper in three different ways: Use dried and ground cayenne pepper flakes; Make a spray; Use pre-made commercial products. The best way to repel mice is to use a combination of repellent smells as well as physical deterrents and habitat modification.

To use cayenne pepper as a rat repellent, you can sprinkle it around areas where rats are likely to enter or frequent, such as near entry points, garbage bins, or nesting sites. You can also mix cayenne pepper with water to create a spray, and apply it to surfaces or areas where rats are a problem.

What is the best way to use cayenne pepper to deter rodents? Cayenne pepper is a natural deterrent for rodents because it contains capsaicin, a compound that gives it its spicy taste. When rodents come into contact with cayenne pepper, they experience a burning sensation due to the capsaicin.