Do the gels work without the glowing mouthpiece?
I bought the glo gels but I didnt know it required a mouthpiece to use them, will applying the gel to my teeth still work even if I dont use the glowing mouthpiece? Or do I need to buy a mouthpiece for it to whiten my teeth?
asked 4 years, 2 months ago
on GLO Brilliant™ Whitening Device G-Vial Refill