Buying online has become the preferred option for many parents as it’s easier and usually more affordable. The big retailers like Amazon, Walmart and Target provide fantastic online ordering systems that can get you lots of different products on the same day or within a couple of days depending on where you live.  There are also many smaller retailers that import European and Australian formula into the US. These formulas may not be approved by the FDA officially so that is something to consider, but they are consumed by millions of babies around the world and adhere to stricter health guidelines than US formula brands are required to follow. Always ask your pediatrician before switching to one of these formulas.