Review (1/5): i wish it had a better power button
I purchased the GLO teeth whitening system in 2020. it lasted a couple months and stopped working (the unit that you charge and connect the to the tooth tray part). Amazon replaced and it worked for a couple months and now this one is doing the same thing.
the 'teeth tray' is comfortable and the gel is OK tasting and pretty easy to apply with the little squishy pods. I only got to use two pods before each device broke so i can't comment on their long-term whitening ability.
the Amazon return/replace was easy
the manufacturer warranty is 1 yr and is pretty straightforward to initiate a warranty replacement.
just wish it would have a more simple on/off switch. the glowing logo 'touch area' may look nice(?) but has failed twice in it's primary role...as a power button.