Q. Hi, I recently got a take home ‘wy10’ kit from my dentist. The first time I used it, I put on too much, and irritated the gums. However I did notice a reaction going on, and a slight bit of whitening. I had to wait a week for the gums to heal, and then tried it again. This time, there was no feeling of a ‘reaction’, and I’ve been whitening for 2 weeks now, with not the slightest change in colour. The dentist even swapped it for ‘poladay’, and that hasnt worked either.. they simply suggested to carry on with it. I can’t think why it would work the first time, then after a weeks wait, NEITHER brand will whiten my teeth. I have kept some at room temperature, and some refrigerated, just to try both. Still no result. Any ideas? thanks for the help