Is E422 halal? Glycerol and glycerin explained
Updated October 20, 2026 by madebykamal
E422 is glycerol, called glycerin in the United States, a humectant and solvent that can be made from plant oils, from animal fats or by chemical synthesis. Halal Authority India, SANHA and IFANCA list it as doubtful or questionable for that reason, the American Halal Foundation says it depends on the source, and the GMWA Halal Food Guide in the UK regards it as permissible because it undergoes a complete chemical change. This page reports who lists it how, not a ruling of its own: certifiers differ, so if you follow a particular certifier or school, check that one.
What E422 is
The UK's list of approved additives names E422 as "Glycerol". SANHA, the South African National Halaal Authority, gives glycerine, glycerol and 1,2,3-propanetriol as its names and its function as a humectant and solvent, and lists its food uses as confectionery, dried fruit, low calorie foods, marshmallows, baked goods and chewing gum. In the United States, 21 CFR 182.1320 lists glycerin as generally recognized as safe when used in accordance with good manufacturing practice.
The American Halal Foundation describes glycerin as a colorless, odorless, viscous liquid that tastes sweet, and as a byproduct of three main processes: fat and oil splitting, biodiesel production and soap making. It names three origins: vegetable oils such as palm, coconut or soybean, animal fats, and synthesis in a laboratory. The code E422 stays the same whichever of these the glycerol came from.
How it appears on a label
- E422, or the number 422. Halal Authority India's sheet notes that E numbers follow the International Numbering System (INS) set by the Codex Alimentarius committee.
- Glycerol, the name on the UK list.
- Glycerin or glycerine. Halal Authority India notes that it is called glycerin in the USA, and IFANCA's Halal Shopper's Guide lists "Glycerin" by name.
- Plant-based or vegetable glycerin, wording that names the source. The American Halal Foundation advises looking for products explicitly labeled as plant-based glycerin.
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- Halal Authority India's E-number sheet: "Mushbooh, called Glycerin in USA, Halal if it is from plant fat, Haraam if it is from pork fat".
- SANHA (South Africa): Mushbooh, with its source given as oils and fats, and glycerin made by chemical synthesis listed as Halaal.
- IFANCA (US): its list of questionable E-numbers, published in its Halal Consumer Magazine (September 2001), gives E-422 the status Q1, and its Halal Shopper's Guide puts E-422 and glycerin under Investigate Further, its category for components used in small quantities that can contain subcomponents from haram animals, alcohol, or halal animals slaughtered by non-Muslims.
- American Halal Foundation (US), in a February 2024 article written about cosmetics: glycerin is halal when it comes from plant sources or is produced synthetically, glycerin from halal animals slaughtered according to Islamic guidelines is permissible, and glycerin from non-halal animals such as pigs is haram.
- GMWA Halal Food Guide (UK): it says it follows SANHA's E-number list but differs from SANHA on some rulings, and E422 is one of them. It regards glycerine as permissible because it is subject to a complete chemical metamorphosis.
Why the source decides it in most of these listings
IFANCA's note on its Q1 group explains the doubt: these ingredients are made from plant oils, animal fats or synthetically, and many are combinations of fatty acids with glycerol, hence questionable or doubtful in nature. For E422 the glycerol is the whole ingredient, so the fat or oil it came from is the open question. Halal Authority India lists plant fat as halal and pork fat as haraam, and SANHA lists synthetic glycerin as halaal and gives the additive as a whole the status mushbooh.
The GMWA Halal Food Guide takes a different route. Its answer does not depend on where the glycerol came from: it regards the complete chemical change as settling the question. Certifiers differ, so if you follow a particular certifier or school, check how that one lists E422.
How to check a product that lists E422 or glycerin
- Read the label for a named source. The American Halal Foundation says plant-based glycerin, from vegetable oils such as palm, coconut or soybean, is generally considered halal, and advises looking for products labeled that way.
- Look for a halal certification mark. The American Halal Foundation says a logo from a reputable halal certification body covers the entire product, including the glycerin, and IFANCA advises looking for halal certified products where the doubt has been cleared.
- Ask the manufacturer where the glycerin comes from, as IFANCA suggests, and how the facility keeps halal and non-halal ingredients apart: the American Halal Foundation points to cross-contamination during production, packaging or storage.
- Check the rest of the list too. IFANCA's Shopper's Guide also lists glycerol stearate, mono and diglycerides, and fatty acids under Investigate Further.
Looking up E422 with Dalil
Dalil, a halal ingredient scanner for iPhone, takes a typed ingredient or E number, or reads an ingredient panel with the camera line by line as each comes into focus. Each reading shows the ingredient as the packet spells it, what it is with a link to the regulation that defines it, and what published rulings say with a link to each one. Where published rulings on an ingredient disagree, it marks it mushbooh by default, shows both positions with the bodies that hold them, and lets you set your own position. It never says a product is halal or certified, and it works in airplane mode with no account.
Questions people ask
Is E422 haram?
None of the sources here call E422 haram in itself. Halal Authority India lists it as haraam if it is from pork fat, and the American Halal Foundation says glycerin from non-halal animals such as pigs is haram. Halal Authority India and SANHA give the additive the overall status mushbooh (doubtful), and IFANCA lists it as questionable.
Is vegetable glycerin halal?
Halal Authority India lists glycerol as halal if it is from plant fat, and the American Halal Foundation says plant-based glycerin is generally considered halal. IFANCA still lists E-422 as questionable, and the rest of the product matters too, so a halal certification mark answers the question for the whole product.
Is E422 the same as glycerin?
Yes. The UK list names E422 glycerol, Halal Authority India notes that it is called glycerin in the USA, and SANHA gives glycerine and glycerol as alternative names for E422.
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Sources
- https://www.gov.uk/government/publications/approved-additives-and-e-numbers/approved-additives-and-e-numbers
- https://www.law.cornell.edu/cfr/text/21/182.1320
- https://sanha.org.za/2009/12/17/e422-glycerin/
- https://www.halalauthorityindia.com/pages/ecodes/6198ecodes.pdf
- https://ifanca.org/resources/list-of-some-questionable-e-numbers-to-be-aware-of/
- https://ifanca.org/resources/halal-shoppers-guide-to-ingredients/
- https://halalfoundation.org/is-glycerin-halal-how-to-verify-halal-cosmetics/
- https://www.foodguide.org.uk/answer/44/