Yeah I have tried to get the thing out as well as I got frustrated with the product not coming out and yeah it is a struggle Update: I got it out about couple of times and now I put it on my teeth
Research have shown that it can oxidize teeth stains and make them whiter. www.mdpi.com/2304-6767/9/12/148 As always, whitening results will vary from individual to individual, that is the disclaimer. There are quite a few obstacles and hurdles which limit the efficacy of OTC products... Nonetheless, this whitening pen is not a bogus product like coconut oil whitening.