I started off using my fiancé snow whitening system that u plugged into ur phone that was over a year ago. Since then I bought the powder u put on ur tooth paste. Bout my own on u plug into u phone used for a few months n realized there was a short in the cord I had to hold a certain way to use so that was a little disappointing. But for Mother's Day I took advantage of the bogo free so I ordered 2 of the lavender wireless mouth piece that came with 3 wands. Got more tooth paste for morning and night, got a year supply of wands oh ya and now have the mouthwash. I have turned my co workers on to snow and some of my customers. I've also tried the white strips that dissolve in less then a half hr. I have so many people ask how my teeth are so white. I tell them I have a SNOW SMILE ;)