I heard both are made in the same factory to as I use aptamil anti reflux milk and apparently the cow and gate anti reflux is the same.

I have heard they're made by the same company and basically have the same ingredients so not sure why the big price difference lol

I always used cow and gate with my kids, my mate used paramilitary with her little boy and he was always constipated so she switched to cow and gate and he was fine