I have been dyeing henna for many years and wanted to find a henna that did not have sodium picromate. I have dark brown hair with a lot of gray, I asked for it and I used it for the first time and the truth that works, it covers the gray hairs. The only inconvenience I find is that it is applied in two phases, but I think the result is worth the color is very beautiful and it is very natural. Also I have not noticed any adverse reaction on my scalp. I'll keep buying it.