Talens Ecoline Brush Pen Set of 10 Skin is based on dyes and Gum Arabic. The colors of Talens Ecoline are astonishingly bright and brilliant. If you wish, you can easily decrease the color intensity through thinning with water or with a blender. The set includes pastel yellow, beige, apricot, pastel red, pastel rose, pink beige, sepia light, sepia, sepia deep, warm grey light.