Called the Girls at the Henna store twice for advice regarding my roots.  Have been coloring my hair with Henna from Yemen for 3 years.  Switched to Celebration Henna about 4 months ago also started using indigo to tone down the "Red".  Now I have a definite growth/root line.  I had a few bags of Yemen in freezer, so I tried using it mixed with some indigo...then I got a really red/lighter root line which is now 1 1/2" So apparently the indigo is not adhering to my roots.  Now, if I switch back to straight henna will my ends lighten up or is the indigo set for the life of my hair?   Any tips for getting rid of growth line?  HELP!!