your main choices that are in most shops are SMA, cow and gate and aptamil. I wouldnt advise SMA, its know to cause constipation, aptamil is the thinest 'lighest' formula, but the most expensive, cow and gate is made by the same people as aptamil but is abit cheaper, both do a soy milk and a comfort milk, hungry baby, follow on and toddler milk. And there is HIPP but iv only seen it in a few shops and dont know anything about it. We use cow and gate x