The Loreal Couleur Hair Color Ginger Twist will work on dark hair, but the effect won't be pronounced. This can be a good or bad thing depending on your desired style.
The Loreal Couleur Hair Color Ginger Twist is great for highlights, especially if you have lighter hair.
how to apply L'Oreal Couleur Experte Express Easy 2-in-1 Color + Highlights
It's best to bleach your hair first before using the hair color, but it's not required. However, bleaching will give you a much better look.
I wish you could buy it! I emailed then about it but got no response. I buy the hair color just for the conditioner. It is incredible!
"c'est de quelle couleur" means "what color is it ?" or "what color is this?"
"Ma couleur préférée est" means "my favorite color is."
(la) couleur
Here is one color chart: http://www.metrobeauty.com/Hair-Care/Hair-Color/Loreal-Excellence-Creme-Haircolor-Color-Chart.html
la couleur des cheveux
La couleur de l'amour is 'the color of Love'
couleur
la couleur