RE: RE: RE: I've used Light Mountain Color the Gray but
Fri, Sep 08, 2006
EcoColors does not recommend using Ecocolors on top of most hennas. Wait at least 1 month before trying an allergy patch test AND a strand test. Some hennas turn GREEN when applying haircolor on top of them. Some hennas turn blue. Some hennas have metals in them. Caution caution caution when applying ANYTHING over henna.