I don’t think these are cayenne… Cayenne peppers are different in overall appearance.
https://www.thespruce.com/thmb/p3EIgdCW8xszEXpFlJL5bsbz8fY=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-1417145904-52b4f6105fce47439f8eae060c75f65d.jpg
Your peppers look more like Peperoncino Calabrese.
Anyway, all the chili peppers have a great amount of health benefits, but Cayenne have the fame of being the most beneficial for our health.