Is Glycerin (E422) vegan?

Key facts

Verdict

Depends on the brand

Category

Additive

Also listed as

glycerol, E422

Best swap

Vegetable glycerin

Why

Most food-grade glycerin is a by-product of vegetable oil and biodiesel processing, but tallow-derived glycerin still circulates, especially in soap and cosmetics.

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What is actually in it

Glycerin — also called glycerol or glycerine, E422 in food — is a sweet, syrupy alcohol that keeps foods moist, soft and shelf-stable. It appears in icing, fondant, marshmallows, protein bars, dried fruit, baked goods and liqueurs, and it is everywhere in cosmetics, toothpaste and medicines as a humectant. The source question mirrors the fatty-acid story: glycerol is a backbone of all fats and oils, so it is produced by splitting either vegetable oils (palm, soy, coconut, rapeseed) or animal fats (tallow, lard), and it can also be synthesised from propylene. The molecule is identical regardless of origin, and labels almost never say which feedstock was used. In practice the food industry overwhelmingly uses vegetable glycerin because it is cheaper and acceptable to more markets, but soaps and some pharmaceuticals have historically used tallow-derived stock. The dependable answers come from a vegan or vegetarian trademark, the phrase 'vegetable glycerin', or a manufacturer confirmation — most keep source statements on file because the question is so common. In cosmetics, glycerin in a product certified vegan is plant- or synthetic-derived by definition. Related label terms share the same ambiguity: glycerol esters, propane-1,2-diol esters (E477) and glyceryl stearate can each trace back to either plant or animal fat. For home cooking, food-grade vegetable glycerin is sold openly and is the form used in vegan baking and fondant work.

Label codes to recognise

E422 — Glycerol / glycerin

Usually vegetable; animal possible — label does not say

Vegetable glycerin — Plant-derived glycerol

Plant

Glyceryl stearate — Emulsifier

Plant or animal

Questions people ask