I do the henna for color. I like it because my hair texture was not compromised - it is just as soft as it was before henna which wouldn't have been the case if I used conventional dye.
I do believe it makes me more sensitive to protein though. I can't deal with large doses of protein or my hair will feel dry and lose curl.
Using FIA: 2b/2a mix with a few ringlets in the canopy, straighter in the under layer by my neck. Thin in density, fine strands. Normal porosity. Hennaed.
Go To's: Aveda, Lush