Artificial colors
Is caramel color clean?
No. Our rubric flags caramel color under artificial colors (evidence: mixed). Class III and IV caramel color contain 4-MEI, a possible carcinogen listed under California Proposition 65; the label rarely says which class.
From Gutlog's clean ingredient rubric, version 2026.11.0. Ask your assistant "is this clean?" with a photo of the label and Gutlog checks every ingredient. General information, not medical advice.