Guardian: Oral Care Red & NIR Light Therapy Device | Patent-Pending Dual LEDs for Health & Hygiene

The fit is good. Too early to see results. The on/off button could be improved. It's difficult to figure out exactly what turns the button on (is it the center, the bottom etc). Ironically I've accidentally turned it off during use just by putting my finger near it. So now I keep reminding myself to hold it by the edges only.

working well so far Thank youi

It seems to work great. It lights up and I guess it works.