I'm fairly new to shaving with anything other than shaving cream in a can. All the homemade and storebought soaps/creams I have tried recently have really been good to my face. A lot of the handmade soaps say that they are made with a high amount of glycerine, or that they're just glycerine soaps. So, I figure that more glycerine would be better. And after this morning, I beleive I was right. It seems that adding 4 or 5 drops to my lather really makes my shave more comfortable and my skin is less irritated. But, my question is, are there different types of glycerine, or are they all the same? The reason I ask is because I got a bottle from what I assume was a chemical manufaacturing company who was selling it for what I think I can assume was cheap. It did, however, come with a warning label saying it was a number one fire hazard/health hazard, according to the diagram. So, does anybody know if this stuff is different than what other people might call glycerine/Does anybody know if there are different types of glycerine? I think I remember there being some sort of purity % on there, but I forgot what it was.