Is glycerin from pigs

Answer 1

Glycerol is found in most plants such as oil seed rape and all animals in the form of triglyceride molecules (these are three fatty acids attached to a glycerol backbone) which are stored in adipose tissue (fat tissue). When the body is deficient in glucose (the bodies natural source for energy), the fatty acids detach from the glycerol babckbone and are transformed into a usage energy source. In answer to your question glycerol can be found in pigs and all other animals that store fat.

Answer 2

Glycerin is one of the trivial names for propane-1,2,3-triol. It's found in fats and oils, so it can be derived from any (dietary) fat or oil.It's a co-product (or biproduct) of making soaps and some biofuels, so while it can be made "from pigs" (specifically, from pig fat, or lard), certainly not all of it is. If you specifically want glycerin to be made from lard (or, more likely, want glycerin that is definitely not made from lard), you'd need to find a supplier willing to certify that no pig fat was used in the production.