I have been thinking about the differences between these two substances a lot, so I decided to order both this time from nutraplanet. I am going to try both and see how they compare to each other. I absolutely love glycerine, but I wonder if GMS will be better? It seems to me that when most substances are modified by adding esters to them they are improved? Well atleast in there bodybuilding application. I think that this question may be something that most bodybuilders who use either one of these substances would wonder about. Well atleast now I will find out for myself which one is indeed better.