Winsor & Newton Artist Oil colour has the trust of most professional artists around the world for one reason, UNMATCHED QUALITY. They use only the purest of pigments in the manufacture of its range ensuring the cleanest, brightest colors! This then produce the best color mixtures and outputs. The best industry standards in quality control throughout all stages of production, plus the selection of the most suitable drying oils and pigment dispersion methods, ensure that each color's properties are preserved.