Winsor & Newton Brush Cleaner & Restorer safely and easily cleans both natural and synthetic brushes without damage to brush heads. It leaves no oily residue, emits a low amount of vapor and is non-toxic, biodegradable, water-soluble, non-flammable and non-abrasive.Winsor & Newton Brush Cleaner & Restorer is available in 120 ml and 474 ml bottles.