This tool scores how transparent a mask's brand is about wavelength, dose, and proof — the things that determine whether red-light can do anything — not a clinical verdict on your specific unit. Cosmetic-appearance use only. Not a medical device, not evaluated by the FDA, and not intended to diagnose, treat, cure, or prevent any condition. We grade other masks on this rubric; we never grade our own — ours is measured by an independent lab and the report is published.