E103 · Colours
Alkannin
An obsolete colour, not authorised in the EU. Little studied, with no established evidence of harm.
- Category
- Colours
- Vegan
- Yes
- Vegetarian
- Yes
What it is
Alkannin is a deep red pigment from the root of alkanet (Alkanna tinctoria), a borage-family plant — not a synthetic dye.
How it is used in food
None — it is no longer used as a food additive.
Commonly found in- Confectionery
- Ice cream
- Wines and spirits
Health and safety
No specific risk at dietary intake has been established. It also lacks a modern safety assessment.
Not authorised for food use in the EU.
Regulatory status
| Region | Status | Notes |
|---|---|---|
| Australia & New Zealand FSANZ |
Permitted | Permitted under the FSANZ Food Standards Code. |
| European Union EFSA / European Commission |
Not approved | Not on the EU authorised list of food additives (Annex II). |
| United States FDA (Food and Drug Administration) |
Permitted | Authorised for food use by the FDA (often GRAS for standard additives). |
Identification on labels
- E-number
- E103
Worth knowing
The code E103 belonged to a different synthetic dye, Chrysoine S, before that dye was banned in the 1970s.
Conclusion
Banned for food use; completely avoid.
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Open the appEntry last reviewed 2026-08-04.
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