Hormones that modulate muscle growth include: 1  growth hormone. 2  testosterone. 3  IGF- 4 1. cortisol.  beta-endorphin, 1  and. parathyroid hormone.
When applied topically, cayenne pepper benefits the skin, too. It alleviates pain caused by shingles, osteoarthritis, rheumatoid arthritis and even as part of a natural remedy for fibromyalgia. The fruit of the capsicum plant contains a chemical called capsaicin.
Cayenne pepper is pure ground dried chiles. 1  Chili powder is a blend of spices, of which cayenne happens to be but one. The other ingredients include cumin, garlic powder, oregano, and paprika. 2  Even so, I think it's illuminating to see what chili powder is, what ingredients it's made up of, and in what proportions.