Unfortunately this blender really doesn’t work all that great, I think the plastic piece used to blend is too big and really doesn’t break things down that well. I used to try to use it with the complete formula and it would have huge chunks in the corner and floating around even after shaking vigorously for over five minutes. I still use the container but use a metal spring like ball from a different blender and it works great now. I bought it for the cute design on the front but unfortunately after the second wash the design started coming off and is now completely gone. It really is a bummer that the image wasn’t sealed, it was so cute.