Thank you for your questions. You can purchase ecocolors at www.ecocolors.net. Register for a login and a password. Then click on "Home Kit" and order from there. Ecocolors is gentle and conditioning. Apply full strength to your new growth. Then dilute the remaining mixture by half to apply to your previously colored hair. The diluted mixture may be left on as long as the full strength mixture, unless your ends are damaged. In that case,leave the diluted mixture on for only 5-10 minutes on damaged hair.
