As a chemist I rely on MSDS information (which I've read). When doing research, using credible sources is important. I would not necessarily accept a customer review as a credible source. It does make me want to dig a lot deeper than the cursory research that I started with. I may have to dig out some equipment and design an experimental procedure.
The point of not exposing to UV light is an issue with all fabrics. It degrades them all eventually.