Curious to know what all of you use to color your hair.

I currently use Tints of Nature which Dr. B ok'd but I would like to go even more natural.  After I use this my face itches for quite some time.

I have used henna in the past and it makes my hair to red and dark ( I have medium to light ash brown hair).

Any info would be helpful - especially if anyone has found a henna  product that works for brown hair.

Thanks

Breis