What is FD&C Blue No. 1?

FD&C Blue No. 1 is a synthetic blue color additive approved for use in a variety of products, including cosmetics, foods, and pharmaceuticals, to impart a blue color.

Is FD&C Blue No. 1 safe?

FD&C Blue No. 1 is generally considered safe for use in approved applications, though rare instances of allergic reactions have been reported.

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FD&C Blue No. 1

FD&C Blue No. 1 is a synthetic blue dye widely used in cosmetics, food, and drugs. It provides a vibrant blue color to products. This ingredient is primarily used for aesthetic purposes to enhance product appearance.

ColorantVegan

BenefitNone 0 / 4

RiskLow 1 / 4

Sensitization i1 / 4

Risk of allergic contact dermatitis or immune-based reactions. Fragrance allergens, preservatives, botanicals, and some dyes may score here.

Irritation i0.5 / 4

Risk of short-term irritation — stinging, burning, dryness, redness, or discomfort. Common for strong actives, acids, retinoids, fragrances, and harsh surfactants.

Rated by SpottyLabs' ingredient methodology, independent of brands.

Things to watch

May cause allergic reactions in rare cases
Can cause temporary staining of skin or surfaces

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Frequently asked questions

What is FD&C Blue No. 1?: FD&C Blue No. 1 is a synthetic blue color additive approved for use in a variety of products, including cosmetics, foods, and pharmaceuticals, to impart a blue color.
Is FD&C Blue No. 1 safe?: FD&C Blue No. 1 is generally considered safe for use in approved applications, though rare instances of allergic reactions have been reported.