I pull it for 15 mins. Did you pull it every morning? I wish I could upload some pictures showing my skin has become whiter and teeth too. Before, the skin whitening effect can only be achieved through drinking diluted Hydrogen Peroxide, which taste awfully bad and have to left my stomach empty for an hour in the morning - doesn't feel good at all. Comparing to Oil Pulling, it's much more comfortable and only takes 15mins, I am pulling at this moment for the forth day. As far as I observed, definitely makes your skin whiter, for the teeth, my mom said it's whiter too but I guess it depends on how yellow your teeth is.