E129 · Allura Red AC
- WHO
- Safe in moderation
- FDA
- Safe in moderation
- EFSA
- Safe in moderation
- FSANZ
- Safe in moderation
- Japan
- Safe in moderation
- UK FSA
- Safe in moderation
- Health Canada
- Safe in moderation
What is E129?
Allura Red AC (FD&C Red No. 40) is a synthetic azo dye that gives a red-orange colour to foods, beverages, medicines, and cosmetics. It is one of the most widely used food dyes and is approved in most jurisdictions with maximum permitted levels, though the EU/UK requires a warning label about possible effects on children's activity and attention. People sensitive to azo dyes, including some with asthma or aspirin intolerance, may experience reactions.
Also appears on labels as: Allura Red AC, Allura Red, Red 40, FD&C Red 40, E129, E 129, E-129, Allura Red Powder, Allura Red Dye, Allura Red Coloring, Allura Red Food Color, Synthetic Red 40.
What the evidence says
- EU/UK warning: may have an adverse effect on activity and attention in children.
- Hypersensitivity reactions possible in susceptible individuals (e.g., some with asthma/aspirin intolerance).
Frequently asked questions
Is E129 safe?
Our overall verdict for E129 (Allura Red AC) is “Safe in moderation”, based on the most cautious of the major regulators’ positions — FDA: safe in moderation; WHO: safe in moderation; EFSA: safe in moderation; FSANZ: safe in moderation; Japan: safe in moderation; UK FSA: safe in moderation; Health Canada: safe in moderation.
Is E129 vegan, halal or gluten-free?
According to our ingredient data for Allura Red AC — vegan: yes, vegetarian: yes, halal: yes, kosher: yes, gluten-free: yes, dairy-free: yes. Manufacturing sources can vary between products; check the label if it matters to you.
What is E129 and why is it used?
Allura Red AC (FD&C Red No. 40) is a synthetic azo dye that gives a red-orange colour to foods, beverages, medicines, and cosmetics. It is one of the most widely used food dyes and is approved in most jurisdictions with maximum permitted levels, though the EU/UK requires a warning label about possible effects on children's activity and attention. People sensitive to azo dyes, including some with asthma or aspirin intolerance, may experience reactions.
Does E129 contain allergens?
No known allergens are recorded for Allura Red AC, though some people report sensitivity (azo dye sensitivity, aspirin/salicylate sensitivity).
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This page summarises publicly available regulatory assessments and research. It is general information, not medical advice. Sources: EFSA, FDA, WHO and the studies linked above.