This article is remarkably sparse on details. Here's an article that explains what the soap is[0]. The TL;DR is that it uses a chemical called Imidazoquinoline, which is not yet approved for skin cancer treatment at all but is currently being investigated. The soap has not been tested on cancer patients and does not have FDA approval. I don't want to sound like I'm dunking on the kid, since he's obviously very intelligent and has a bright future ahead of him, but this isn't nearly as good as the media is making it out to be.

[0] https://www.npr.org/sections/goatsandsoda/2023/10/27/1209048...