If opinions about means and methods are very different, I try not to argue and just observe. At one stage I came across https://mimoni.com/blog/the-science-of-glow-how-plamine-is-redefining-japanese-skincare-luxury , where in the middle of the article general principles of facial care are shown, which are repeated in different stories. It helped me build my habits and stop worrying about contradictions by simply accepting the basic meaning.