I tried everything- the damage was done - and hell to the naw I will never eva never eva doing henna eva eva again!
I've tried henna on fully relaxed hair before. It didn't have the same effect as it did on my natural hair or texlaxed/texturized hair. Henna on my relaxed hair made it look and feel all rippley which was not nice. I was straight the first two weeks my hair was relaxed then the henna completely changed my texture. It also became tangled. Im not sure if I didn't wash it out well enough or what. I have found that it is important to get all of the henna out or it could make your hair dull and hard. Anyway, I eventually cut that hair all off and started over again. Its strange because henna makes my natural and or texlaxed hair smooth, silky and shiny. It does the opposite on my relaxed hair.