Wikipedia:Articles for deletion/Red light therapy
per  WhatamIdoing.  There is confusion in this discussion between notability and proven effectiveness.  Notability ''does not'' require that clinical trials have taken place.  It does not even require that there are  present in the article.  A subject can still meet notability through  without that, and the fact that a reputable publisher (Simon & Schuster) has https://books.google.co.uk/books?id=BG7PDwAAQBAJ published a book on the subject is enough to cross that hurdle imo.  Of course, we should not be presenting the claims about the treatment as facts without MEDRS to back up those claims.  But we can still discuss those claims and we are doing our readers a service by having the article and highlighting the lack of medical evidence
— User:Spinningspark, 00:21, 27 March 2020 (UTC)
Stance: keep
Cited policy: WP:MEDRS||WP:GNG (Wikipedia:Reliable sources)