Rainbow Research Henna Hair Color and Conditioner, Persian Black Deep Ebony, 4 Ounce

The Rainbow Research Henna Hair Color and Conditioner in Persian Black Deep Ebony has received mixed reviews from customers. Many users have found success in using this product to cover grey hair and add volume. Some customers have praised the natural-looking color it provides, with one user mentioning that the light brown shade matched their natural color perfectly. Others have noted that mixing the henna with black tea and leaving it for a few hours before application yielded the best results. However, there were also negative reviews, with some customers experiencing a lack of color change after use or disappointment in the fading of the color. One user mentioned that the product left their hair dull-looking with a green tint. Overall, while some customers have had positive experiences with this henna hair color, others have found it to be lacking in color payoff and longevity. **