Unsure of overall effectiveness
Tthe tooth powder to brush with very messy- when you open the bottle lid it will disperse into the air like a dust cloud and honestly I can't imagine thats good to be breathing near but can't perfect how to open it with out it going everywhere and I think more falls off/disperses than I actually use. It won't stick to regular tooth paste, even if you wet the paste so I have been using it alone after I brush. It also intensifies the mint flavor of my toothpaste to almost an arctic ice burn so I prefer to just use it alone. Otherwise, the product does work well, however, if you have any stains from braces (TBT 6th grade that left white bracket marks on my teeth), it actually made my stains brighter white before my teeth so it's a little off putting that it's not an even whitening and that my stains are actually more noticeable. I have extremely sensitive teeth so the gel is great- I use it before and after and it does actually avoid the "Zingers" I get. I will have to continue using every other day to see if all of my teeth adjust to even out but right now I mostly see that my stains are just a brighter white.
Rating: 3 stars