Is This the Right Glycerin?

I've been seeing a few blurbs about glycerin/glycerol on this site and decided to try it. I purchased a small bottle at Wal-Mart today but later noticed that it reads: "emolient, for external use only." The product is made by Swan and is only labeled Glycerin U.S.P.

Does anyone know if this is the same thing that’s suggested by Christian Thibaudeau and others on the site? Like others have said, this tastes exteremely sweet, so I’m hoping it’s the same but the “external use…” makes me a bit weary.

I’m curious about this too. I’ve only been able to find glycine powder and not the liquid.