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E172⚠️ Caution

Iron oxides and iron hydroxides

Category

Colours

Function

Brown

EU: ApprovedUS: Restricted

Caution. May pose risks for some individuals; limited or restricted use.

Official Sources

EU Register — EU Register entry for E172(2026-07-01, tier 1)
EFSA — EFSA OpenFood Tox database(2026-07-01, tier 1)
FDA — FDA Substances Added to Food (search: E172)(2026-07-01, tier 1)
Codex Alimentarius — Codex GSFA entry for E172(2026-07-01, tier 2)

Last checked: 2026-07-13