Thread: What's the difference between glycerin suppositories, glycerin used in cooking, and normal glycerin?

I see glycerin suppositories and then I see the pure liquid glycerin. The liquid glycerin apparently says "For external use only". What's the difference between the ingredients for those? And what's the difference between those and the glycerin used for food/cooking?

honestly, i'v done a few searches on that myself and find the difference is how much glycerin is on them and the other is which end you stick them...no joke