"Pure creatine" refers to a substance called creatine that is in its most concentrated and untainted form, without any additional ingredients or additives mixed in. Full definition
While capsules are a lot more convenient to consume, especially when you are away from home, they do not contain the amount of pure creatine which is ideal for effective results. (pronutrics.co)
I think many know that pure creatine powder beats creatine serum. (bodybuildingforyou.com)
Personally, I prefer to just use pure creatine, seems to work better. (bodybuildingforyou.com)