Kama Pigments crafts their selection of oil sticks from walnut oil and natural waxes blended with their selection of pigments. These products are therefore solvent-free. The team in charge of formulating these products aims to maximize the concentration of pigments in these sticks to make them as bright and vibrant as possible. These sticks behave essentially like oil paint and are compatible with all products, supports, and mediums intended for this technique.