Funny
I give a 3 because did not whiten and 2 of the brushes started shedding bristles quickly. I give a 3 though because it did prime the teeth for a better result from whitening gel to perform noticebly better. I label as funny because I shared, and without warning this product can be messy as everyone has mentioned. I will say that after using, my teeth did feel clean.
Rating: 3 stars