I've had some tabs where I didn't get the shakes and I've had liquid from IBE Nutrition that I didn't get nothing from. If I don't get the shakes, I usually don't get the other sides either so I figure it's not good stuff.
I wasn't too sold on liquids until a couple of weeks ago. I tried ancillary Guy's Clen. I was very impressed. Just as good as tabs I have taken previously