We used Enfamil Lipil (w/ DHA & ARA) until DS was about 6 or 7 mths old. We've now switched to Target's Healthy Baby brand. It is the same (by the same company Wyeth) as Walmart's Parent's Choice brand. We use the DHA/ARA formula, but at this point I think we probably don't need to. I've just stuck w/ it since he's been using that kind since birth.