u/This-Till5204

I've been going back and forth between LED masks for weeks now, there's so many options and every brand claims theirs is the best. I've been comparing specs like wavelengths, irradiance, FDa clearance, session time, priceee. I just want something that works and isn't a waste of money. Has anyone here tried multiple Led masks and can compare? What did you end up going with and why? also is there a noticeable difference between the cheaper ones on amazon and the more established brands?