1-Naphthol vs Ext. Violet 2 (Ci 60730)
1-Naphthol and Ext. Violet 2 (Ci 60730) are both added colour ingredients. 1-Naphthol is found in 1 product while Ext. Violet 2 (Ci 60730) appears in 2, making Ext. Violet 2 (Ci 60730) the more widely used option.
1-Naphthol
Added colour
Ext. Violet 2 (Ci 60730)
Added colour