IGORA ROYAL permanent color creme 6-4 60 ml IGORA ROYAL permanent color creme 6-4 60 ml Igora Royal permanent color creme 6-4 60 ml is a permanent color creme specifically designed for professional use. It is formulated with an advanced oil-based technology that provides maximum color intensity and outstanding grey coverage. The unique formula is enriched with color boosters for maximum color intensity, even on dark bases. It offers superior performance with superior results. The unique oil-based technology ensures that the color is evenly distributed throughout the hair, leaving behind a vibrant, long-lasting color. The formula is also enriched with conditioning agents to leave hair feeling soft and healthy. It is ideal for covering grey hair and can be used to lighten or darken hair color.