> How do you know that's not frying some kind of receptor in your body?

I don't. One of the things I enjoy about life is being able to experiment on my own body.

The manufacturer doesn't make it clear why they axed it, but from my experience in med-tech I think this translates to "the FDA is going to balk at it"

https://www.kyowakirin.com/media_center/news_releases/2022/p...