I've been looking into henna... but I don't want a drastic change in my hair color. Every 3 months or so I usually dye it a darker golden brown beacuse it naturally fades to medium brown. I was looking for a henna option that would get me to a nice dark brown. Has anyone used any of these? Any recommendations? I was trying to search and read through all the links. I saw a lot from Lush, but found mixed reviews every where, and wasn't a big fan of having to do it monthly.

Thanks