Howdy!
There are lots of places that carry Glycerin.
What you are looking for is USP, anhydrous Glycerol, commonly known as Glycerin.
There is a debate over Organic, Vegetable or Petroleum Glycerol.
You want to know a secret?
They are all the same.
Some folks confuse Propylene Glycol (PG) for...
Hi!
Tried this the other day, good result.
3.2 grams Sour Diesel, dried, powdered.
Heat 1/2 fl. oz. vegetable glycerin to 375 F, stir in herb in small (1/8 tsp.) increments. Will foam up a bit.
Stir for another 5 minutes after last herb added.
Herb should be getting dark...