A friend of mine has successfully comp fed with Bellamy's organic formula - available at the supermarket. A little more expensive than some of the others. Not sure where it is made but she's happy with it. I use S26 - not happy with them moving offshore but DD will only be on it for a couple more weeks. The hospy recommended Nan HA (same reason that Enchanted said) but all the formulas with omega 3 seemed to bind up DD something dreadful. Unfortunately it can be trial and error so you may want to try different stick packs until you find one that suits you and your bub.