The substance that gives these peppers their spiciness when eaten is called capsaicin.
It's time for me to stop being such a wuss. I need to build up my tolerance to spice. I want to use some chili peppers in food. Teach me about them OK, chili peppers are originally from Mexico. Ah.. makes sense. Mexican food is spicy too. What else can you tell me?
The substances that give chili peppers their intensity when ingested or applied topically are capsaicin and related compounds known as capsaicinoids.