Revolutionary MAX oil color eliminates the need for turpentine, mineral spirits or other harsh solvents. These colors have the look, feel and performance of conventional oil colors, but theyre water-soluble and most are non-toxic. Theyre made using the same pigments and oils as Pre-Tested Oil Colors, so they have a similar buttery feel, durability and drying time, making it easy for artists to integrate them into their palettes and working styles. The colors may be mixed with any oil painting solvents or additives (even small amounts of conventional oil colors) and still retain their water-soluble character. They may not achieve the same level of complexity in layering as conventional oils. However, the safer composition, ease of use and easy clean-up make them especially perfect for classroom situations. Titanium white, zinc white and cerulean blue have been formulated to be non-yellowing.