Ci
CI 42090 (Blue 1)
CI 42090 · Blue 1 · Blue 1 Lake
A synthetic blue dye (FD&C Blue No. 1) that does one job: color. No documented skin-care effect.
What it does
CI 42090 is the label code for a synthetic blue dye, FD&C Blue No. 1. The plain form colors water-based products; the ‘Lake’ form is bound to aluminum so it can color oil-based ones.
The EU’s ingredient database lists it as a colorant (adds color).European Commission, CosIng (© European Union, CC BY 4.0) · uses put in plain words by Drop ↗
Also known as
brilliant blue fcf, FD&C Blue No. 1, acid blue 9
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