FD&C Blue No. 1 is a synthetic organic dye used to impart a blue color to cosmetics, foods, and pharmaceuticals. It is one of the most common blue colorants approved for use in the United States and Europe. Its primary function is aesthetic, making products visually appealing.
NoneColorantVeganEvidence: Medium
BenefitNone 0 / 4
RiskLow 1 / 4
Sensitization
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
potential for allergic reactions in sensitive individuals
Spot questionable ingredients in seconds
SpottyLabs scans any skincare product and rates every ingredient for benefit, risk and safety. Free and independent — no brand is paying us.
Yes, FD&C Blue No. 1 is approved for use in cosmetics by regulatory bodies like the FDA and EU, with established safety limits. It is generally considered safe when used within these guidelines.
Can FD&C Blue No. 1 cause skin irritation?
While generally well-tolerated, some individuals with sensitive skin may experience mild irritation or allergic reactions to FD&C Blue No. 1. Patch testing is recommended for those with known sensitivities to dyes.
Spotty Labs