You will most llikely have to sulphate poo it all out after the 72 hours but it's ok. One sulphate poo wont kill your hair. I have also heard that a lot of curlies follow a color with a protein treatment and a DT...anyone else? I colored my own hair last time with a natural dye and had no issues.
High Priestess JessMess, follower of the Goddess of the Coiling Way and Confiscator of Concoctions in the Order of the Curly Crusaders