Like The OAK said: "The greatest feeling is the pump."
Unfortunately, when you consume a leading Glycerol powder: you are also consuming close to the SAME amount of sand. There is a reason that these leading powders are only 65% glycerol: it is only truly stable as a liquid. The other 35%... is sand. (Silica) Would you grab a handful of sand to eat? We'd hope not. FSU serum uses clinical grade GlycoClear Glycerol that is 99.7% Pure. This Means: instead of building a sandcastle in your belly, you're shuttling H20 directly into your muscles. But there's more to a pump than glycerol you say? You're correct. In-comes the patented NO3-T® Nitrates. FSU ALSO yields a massive 2,000mg of Betaine Nitrate. Incredible right?