Now, feel the difference in your hair texture. It should have become smooth and shiny with a change in color. If you are having dark hair, application of henna gives a red highlight, which can be seen in sunlight. Henna hair coloring makes blonde hair look natural red in color, while red hair turns to a deeper red shade. White hair turns to a natural red color with the usage of henna. For deeper color tones and for maintaining the color change, you have to apply henna frequently. Always make it a point to buy pure and natural henna, without any harmful chemicals.