So I don't want ALL of my hair black (at this moment) but I'm thinking about just the underneith section (put hair in a half-up making a part form ear to ear and darkning what's left)
Anyways I know that calls for 2 step henndigo process, but do I have to re do both? I just did a 1step a couple weeks ago is the henna still active to turn the indigo black or do I have to re do the henna and quickly do the indigo?
I would like to do this maybe this evening so any help would be appricated.