Disperse Blue 1
What is it?
Disperse Blue 1 is a blue-black microcrystalline powder. In cosmetics and personal care products, Disperse Blue 1 is used in the formulation of temporary and semi-permanent hair dyes, colors and tints.
The safety of Disperse Blue 1 has been assessed by the Cosmetic Ingredient Review (CIR) Expert Panel. The CIR Expert Panel evaluated the scientific data and concluded that Disperse Blue 1 was safe for use in hair dyes at concentrations up to 1%.
Why is it used in cosmetics and personal care products?
Disperse Blue 1 helps to impart a color to hair. The exact color obtained will depend on the other ingredients that are used in the preparation and the starting color of the hair.
Disperse Blue 1 is a synthetic pigment sometimes referred to in general terms as an anthraquinone color. Disperse Blue 1 is used in semi-permanent hair coloring systems that are usually applied in a shampoo base and contain thickeners, alkalizers, and foam stabilizers.