GMS = glycerol monostearate very similar to glycerol powder = HydroPrime(patented no clump glycerol). To answer your question, yes.
Initially, glycerol was included in sports supplements primarily in the form of glycerol monostearate (GMS). GMS is composed of glycerol and stearic acid, which only about 25% at most consisting of actual glycerol.
Due to this high fat content, GMS didn’t really dissolve all that well in solution, often leaving consumers with glycerol gobs on the sides of their shakers. Another problem with the high fat content of GMS is poor stability (due to its hygroscopic nature) and short shelf life. The end result was many forms of GMS in supplements that only contained 5 to 12% glycerol by weight, so as to prevent degradation.