Henna Color 4 Henna Hair Balsam Hair Color Effect Of Natural Hair Dye Hen Eco

Instruction were not clear in english. I used an online translator. I normally leave my henna on for 4 hours. This said about 30mins. It didn't work. I've used henna for nearly a decade. So I know it works. I'd advise keeping it on longer, using hair dryer heat to bring out the colour. And some english instructions that are more helpful.