Produced under the close supervision of Robert Gamblin, these beautiful artist oil colors are formulated using pure pigments and refined linseed oils. No adulterants are used in the process, so each color retains its unique characteristics of tinting strength, undertone and texture. Gamblin Artists Colors is a company dedicated to making the finest quality oil painting materials. Gamblin artists make oil painting materials from formulae developed by Robert Gamblin to serve two purposes. First, Gamblin Artists Colors have luscious working properties so painters can enjoy each color's unique tint and textural characteristics. Second, Gamblin finest quality oil painting materials make permanent paintings. Art materials are always best when made by those who appreciate the potential in the artist's mark. We’re sure you’ll agree that the quality of these oil colors is exquisite.