What is it?
Wella ColorCharm® Liquid NN Shade Collection Suede Series shades will offer the ultimate in gray coverage without the added warmth. NN shades are for resistant gray/white hair, they contain extra pigment for stubborn coarse hair. NN shades contain more dye molecules so they give more depth to your final hair color result.
NN shades includes:
4NN, 5NN, 6NN, 7NN, 8NN and 9NN