There is nothing inherently special about the Cayenne pepper for that function. Capsasin may assist in better blood flow.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4477151/
As such any hot pepper would achieve a similar result.
You will note I specified some of the purported health benefits are wishful thinking. Not all.
Take that witch doctor! Fuck yeah science!
Lol