Specially formulated for Oil Painting, both turpentine and odorless mineral spirits allow easy clean up and the ability to mix your own mediums and glazes. Gamblin Gamsol and Winsor & Newton Sansodor allow the longest exposure with the lowest toxicity by minimizing evaporation into the workspace environment. Turpenoid Natural removes all toxicity for cleanup of brushes and studio with a natural citrus based cleaner. Traditional Winsor & Newton Distilled English Turpentine is prized by oil painters for purity and workability. Best Test brand of turpentine & mineral spirits provides high quality at a low cost. Artist grade of turpentine and mineral spirits should not be confused with the hardware store grades of these solvents. The lower quality solvents available at hardware stores will cause oil paints to become gummy and sticky as well as weakening the paint structure.