ADRENOCHROME
This is a commercially available chemical. See link:
https://www.sigmaaldrich.com/catalog/product/sigma/a5752?lang=en®ion=US
There is no reason to terrorize, torture, skin, or eat children, nor drink their blood to get it.
Personally, I think the people who perpetrate those unspeakable horrors simply like doing them and adrenochrome is a red herring meant to justify the act among themselves. These people are satanists. The very worst of mankind. Nothing that they do or say can be trusted.