I started off with Tommee Tippee closer to nature, but they really didnt suit Mia at all. Then I went onto dr browns which did seem to help at first as she is extremely windy but then they no longer worked. And the teats were just way too soft for her, as they were on Tommee Tippee ones. So now she's on MAM bottles which so far seem to be working the best for her, I just hope they keep working well for her.