For example, one difference between Similac Advance and Enfamil Lipil is that Similac Advance doesn't use palm olein oil as its source of fat, instead, using soy and coconut oil. (verywellfamily.com)
Another point to note is that Similac prides itself in not using palm olein oil which has been under much debate over its safety to health despite its widespread use. (followmum.com)
Nelson, S. E., Rogers, R. R., Frantz, J. A., and Ziegler, E. E. Palm olein in infant formula: absorption of fat and minerals by normal infants. (webmd.com)