Can you use Jensen violet on brown hair?

Jensen violet, a dye commonly used for hair coloring, may not achieve the desired effect on brown hair due to its formulation and the underlying pigment of the hair. Brown hair can absorb the color differently, often resulting in muted or less vibrant results. If you’re considering using Jensen violet on brown hair, it’s advisable to perform a strand test first to see how the color develops before applying it to the entire head. For more vivid results, lightening the hair beforehand may be necessary.