I personally love these for my baby!
He is almost 4 weeks old and he has suffered bad with colic. I have tried alot and I mean ALOT of different makes of bottles all meant to be anti colic bottles. We then stumbled across these (by accident but the best accident I ever made!!) These were a life changer we started him on the 1+month teat and he did amazing drank so well with no fuss I could see the teat sat nice in his mouth and he was able to get the milk he wanted with little effort. I could see the bubbles being collected in the bottle it was great! These tests definitely helped me and my son cope with the colic and it's surprising 80% better just by finding these! Thank you philosophy advent!!