Protein powder is an essential tool that the vast majority of bodybuilders use. It can add serious amounts of muscle in a short a time span, whilst also aiding recovery. But with so many out there, do you know what you should be looking for? Time released blends, soy protein isolates, pea protein isolates, low carb options, added creatine - the list goes on, so it's no wonder many get confused about which to pick. Let's take a look at exactly what you should be on the lookout for.