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Ingredient · Colorant

Colour: E150c)

Mixed · 4/10, higher is cleaner

How we reached this

E150c (ammonia caramel) — synthetic caramel coloring made via ammonia process. Contains 4-methylimidazole (4-MEI). California Prop 65 lists 4-MEI as known carcinogen; FDA + EU maintain that exposure at typical use levels is below concern threshold but the listing is documented.

Sources · 1

Also listed as

colour e150c

Products containing this · 1

About this rating

Ratings run 1–10, higher is cleaner, and are set editorially against the sources above — see the methodology page for how an ingredient rating becomes part of a product score. Last reviewed 2026-05-25.