I don't know why the people running red light studies hate control groups so much. If you do that many studies, varying wave length and intensity for some of them should be trivial. Yet somehow they almost never do that.
So: 90W mask or 1500W panel? Infrared, red light, or does yellow work just as well, maybe?
The people doing near-UV therapy for skin conditions managed to do all that. There's a know effective wave length (it's always 311nm), there's dosage plans. There's licenced medical devices doing the irradiation. IR people seem less interested in all that.
