Artist Grade acrylic paints are professional quality and they contain pure pigments with no fillers, extenders, opacifiers, toners, or dyes. These pigments are extremely lightfast and they will not fade in time. Higher loads of pure pigments makes these paints brilliant and intense. Naturally, these are the most expensive acrylic paints in the market. Only in Artist Grade acrylic paints can an artist find special acrylic colors such as interference colors.