Pebeo Clarified Poppy Seed Oil Thinner for Paints, 75ml Bottle Pebeo Clarified Poppy Seed Oil, extracted from black poppy seeds, is particularly suitable for grinding light colors. More luminous than linseed oil and less drying, Pebeo Clarified Poppy Seed Oil hardly yellows at all. Pebeo Clarified Poppy Seed Oil is an excellent binder that highlights brightness. Because it is less drying than other oil, Poppy Seed Oil requires the use of a drying agent. May be thinned with mineral spirits or turpentine.