Red 40 (CI 16035)
Ingredient Info
Red 40 is a synthetic colorant used to give skincare products a red or pink hue. It has no active skincare benefits and is included purely for visual appeal and product identification.
Potential concerns
- May cause allergic reactions or contact dermatitis in sensitive individuals
- Azo dye that some people prefer to avoid
- Not necessary for product efficacy
Science: Red 40 (Tartrazine alternative, FD&C Red No. 40) is approved for cosmetic use in most countries including the US (FDA) and EU. Limited peer-reviewed data specific to topical skincare applications, but extensive safety data from food and drug use shows it is generally well-tolerated. Some individuals with dye sensitivities may experience reactions.
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