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Red 40

Synthetic azo dye used as a color additive in foods and cosmetics to provide red coloration.

Mineral or nutrientUpdated Feb 13, 2026
Health score-3.0
-5Poor5

Water guidelines

Legal limit
Not specified
Health guideline
Not specified

Food and supplement guidelines

Legal limit
Not specified
Health guideline
Not specified

Risks

Potential allergenicity, hypersensitivity reactions, hyperactivity concerns in children, regulatory restrictions in some countries

Benefits

Provides vibrant red color to food and cosmetic products

References

Waters containing Red 40

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