What, of course they burn the skin. It's not only about brandings, but also about the overall treatment of animals. Just look at this: youtu.be/ql8xkSYvwJs
I'm not ignorant, I know what people do to animals and I know many people are cruel enough to burn the skin, but for the most part it's just the hair. I'm not trying to start a fight here
You should really do more research... They burn the skin. That's how it works. Burn the skin and it scares it, thus leaving the brand on the animal for the rest of their life. And if just the hair is burnt, why do they scream in pain?