Free Crest Whitestrips samples
If you are still not sure if it's worth buying a pack of Crest Whitening Strips, you can avail of free samples to try it for free. If you request for a sample, they will send you a pouch which contains 2 strips (upper + lower strip).
This was posted 3 months ago 8th February 2018.
Avail of this freebie at the Arowhite promotion site.