Adrenochrome is result of oxidation of adrenaline. From the wikipedia article on it: According to QAnon, which has incorporated and expanded Pizzagate's claims about child sex abuse rings, a cabal of Satanists rapes and murders children, using the adrenochrome they "harvest" from their victims' blood as a drug[23][24] or as an elixir of youth.[25] In reality, adrenochrome is synthesized, solely for research purposes, by biotechnology companies.[26][27][28]

So if it had any benefit to anybody, instead of most-likely being a poison that the body recycles, it's synthesizable and available all without killing young children.

https://en.wikipedia.org/wiki/Adrenochrome