Black grin, brighter smile !!
Yes ! Loved it.  Easy to use.  Different than what I've used in the past. Odd flavor but very mild.  Kids had fun, so much so could've lost the powder because of the fun.  I love tea and coffee which means having stains.  Gradually after using Avistar whitening it started naturally lightning up! I prefer more of the natural way instead of bleaching. Just my preference.  Used a bit of powder with my tooth paste worked up just fine.  Smile for a black grin. Haha I recommend!
Rating: 5 stars