Add all the smoothie ingredients in the blender, blend and then check the consistency of the smoothie. (superskinnyme.com)
If you are using a different brand, start with 2/3 of what is called for, let it rest a few minutes, and then check your consistency before adding the full amount. (awholenewtwist.com)
Overall, I'd recommend trying these pencils out in the store first to check the consistency before purchasing. (dressedfortime.com)