I bought the V34 colour corrector and it done almost nothing.. I say almost because it did make my gums purple for a bit. The videos they show of it instantly whitening teeth are completely fake. There is no instant change and after using it for a while, there is no long term change. I knew it was going to be a scam but like alot of other people I am desperate, so I tried it. Don’t make my mistake, don’t listen to the fake high reviews.