Turpenoid Natural was designed for artists and students as a safer alternative to traditional and harmful solvents associated with oil painting. AP Nontoxic, nonflammable and with no harmful odors, Turpenoid Natural is safe for artists of all ages and will not irritate skin. It will effectively clean and gently recondition brushes and rinses out with plain water. it may also be used as a medium within recommended guidelines. When used as a medium to thin paint, paint to Turpenoid ratio should not exceed 4:1. This is a 118ml bottle of Weber Turpenoid Light Brush Cleaner.