RE: i have dyed my hair with black henna dye, i w...
No! Ecocolors Haircolor will not work for this challenge.Black hennas are not all created equal. Some have green undertones as you lighten them. Some have blue undertones as you lighten them. Some black hennas actually have permanent oxidative dyes in them. Call the henna manufacturer and ask them how to solve this challenge. Odds are, you will have to let it grow out and get it cut out.
