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Doubtful — depends on source
E422 (Glycerol / Glycerine) can be made from plant oils, from petrochemical synthesis, or from animal fat — so it is treated as doubtful (mushbooh) unless the source is known.
Glycerol (glycerine) is a sweet, syrupy liquid used to keep foods moist, as a solvent, and as an emulsifier. It is also common in medicines, toothpaste and cosmetics. It can come from vegetable oils, from synthesis, or from animal fats.
Produced as a by-product of soap-making and biodiesel from fats/oils, or by synthesis. The fat/oil feedstock can be vegetable (e.g. palm, soy) or animal (tallow) — the label rarely says.
Glycerol's status depends on its source. Plant-derived and synthetic glycerine are halal; animal-fat glycerine is only permissible if the animal was halal. Because the source is usually unstated, it is treated as doubtful until confirmed. Much food and pharmaceutical glycerine is vegetable-derived, but this should be verified.
It may be found in — this does not mean every product below contains it.
GlycerolGlycerineGlycerinE422Humectant (E422)INS number: 422
In Singapore, verify the finished product on the MUIS HalalSG register. A certified product will have had the glycerol source assessed; for an uncertified product, contact the manufacturer.
Check MUIS HalalSGSources: EFSA, FAO/WHO, MUIS · Last reviewed: July 2026 · This guidance is not certification.
It is source-dependent. Plant-derived and synthetic glycerine are halal; animal-fat glycerine is permissible only if from a halal animal. Since the source is usually unstated, treat it as doubtful and verify.
It can be made from animal fat, which could include pork-derived tallow, but it is also commonly vegetable-derived or synthetic. Look for 'vegetable glycerine' or certification, or ask the manufacturer.
Yes. Vegetable-derived glycerine is halal.
'Glycerol', 'Glycerine', 'Glycerin' or 'E422' — ideally 'vegetable glycerine'.
Humble Halal methodology: we classify additives by their common origin, not by any specific product. A generally-halal ingredient does not make a finished product halal-certified. This page is general guidance, not certification or religious/legal advice — always verify the complete product. Last reviewed July 2026.