Acid Orange 3

Safety Information

The safety of acid orange 3 has been assessed by the Expert Panel for Cosmetic Ingredient Safety. The Expert Panel evaluated the scientific data and concluded that acid orange 3 was safe for use in hair dye formulations at concentrations less than or equal to 0.2%.

Although acid orange 3 was mutagenic in a test in bacteria, acid orange 3 was not carcinogenic in studies where the ingredient was applied dermally. Additional tests found that a hair dye formulation containing acid orange 3 was not a reproductive toxin upon dermal or oral administration. The Expert Panel set a limit of 0.2% because this was the level tested in toxicological studies.

More information about the safety of hair dyes.

Acid orange 3 is not permitted for use in hair dye products marketed in the European Union (see Annex II).


Acid Orange 3

What Is It?

Acid orange 3 is a hair colorant used in the formulation of semi-permanent hair dyes and colors.

Why Is It Used?

Acid orange 3 imparts 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.

Scientific Facts

Acid orange 3 is used in semi-permanent hair coloring systems where color is deposited onto the hair shaft. Users of semi-permanent hair dyes will find that their product usually consists of one package with no mixing of different components required. Semi-permanent hair dyes can typically last for up to 15-24 shampoos although their resistance to washing will be determined by molecular size and other properties such as solubility and charge.