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Doubtful — depends on source
E572 (Magnesium stearate) is a magnesium salt of stearic acid whose fat source can be animal or plant — so it is treated as doubtful (mushbooh) unless the source is known. It is best known as a tablet/capsule lubricant.
Magnesium stearate is the magnesium salt of stearic acid, used mainly as an anti-caking and release agent — very commonly as a flow agent in tablets, capsules and supplements, and in some powdered foods.
Made by combining magnesium with stearic acid. The stearic acid can come from vegetable oil or animal fat — the label rarely says which.
Magnesium stearate is doubtful because its stearic acid can be plant- or animal-derived, and the source is usually unstated. Plant-derived magnesium stearate is halal; animal-fat versions are only permissible if from a halal animal. Because it is so common in tablets and supplements, verification matters to many people.
It may be found in — this does not mean every product below contains it.
Magnesium stearateE572Magnesium salts of fatty acidsINS number: 572
In Singapore, verify the finished product on the MUIS HalalSG register or contact the manufacturer — this is a very common supplement/tablet ingredient and its source is usually not printed.
Check MUIS HalalSGSources: EFSA, FAO/WHO, MUIS · Last reviewed: July 2026 · This guidance is not certification.
It is doubtful (mushbooh). Its stearic acid can be plant- or animal-derived, and the source is usually unstated — verify with certification or the manufacturer.
It depends on its source, which is usually not stated. Look for halal certification or a vegetable-source claim, or ask the manufacturer.
'Magnesium stearate' or 'E572'.
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.