Maxi hair dye dark gray blonde 306/1 from Wella Koleston

First permanent dye free of ammonia with oil particle technology (argan and safflower) from Coliston provides amazing and lasting coverage for white hair. The only ammonia-free dye with fine oil particle technology (argan oil). Color lasts up to eight weeks, providing full coverage for gray hair. Permanent color and intense shine. 100% coverage of gray hair.