1 MLA style: SST.. 2  Acronym Finder. 2015. 3  AcronymFinder.com 6 Oct. 2015 http://www.acronymfinder.com/Serum-Separator-Tube-(blood-specimen-collection)-(SST).html.
Once it is completely dry, condition your hair with a deep conditioning treatment to help put back some of the moisture that was removed during the process. If you still have some black left, redo this process a few days later. Once you get all the black removed, you can dye it the brown shade of your choosing.1  Make sure you give your hair some time to recuperate before you try it again. 2  The acid in the vitamin C makes your hair susceptible to damage, so waiting will allow your hair time to regain its natural oils before you start again.t is unlikely that all the black hair dye was removed during the first run, so you should repeat the process. Once you get it the color that is light enough, dye it with the brown dye of your choice. 1  Try to give your hair a break of a day or so between treatments. 2  This method will not lighten naturally dark hair.
Spray on all over to lighten all of your hair or apply with a cotton ball or brush for strands of highlights. Leave on 30 minutes and rinse out. Dry as usual. (Of all of these options, Iâve used this method the most.n most hair, henna will only darken, but on very dark brown or black hair, henna can lighten and leave reddish highlights. Use about 3 tablespoons of henna powder to Â½ cup of boiling water. Let this sit for 12 hours or overnight. Then apply to your hair and let sit for 2-3 hours.