As in glycerol???
I used it a few years back, it was a 8oz bottle or so you were supposed to mix with water to dilute it during training. The supplement store I worked for couldn't sell it because it tasted so horrible, and I only used it a handful of times. Didn't notice any kind of effect from it. There is an ABB drink that has around 10grms of glycerol as part of a pre-post workout protein drink, and it seems to give pretty decent pumps whenever I've tried it.