Thanks to all for providing so many info about this. I am very weary of using anything in my hair that is deemed as "enhancing" in henna as I have a fear that it will hurt either my hair or my scalp (chemical dye left my hair looking nasty for years and I onl yused it 2 or 3 times). I will probably give this henna away as I just don't want to risk it. Thanks again to all!