Da Vinci Brush-cleaning Soap is made from sustainably sourced vegetable oils specifically for cleaning and conditioning the brush head.
It works extremely well at cleaning both oil and water-based paint from the ferrule of your brush, and rebuilds the natural fat protection of the hair and bristle, so the hair doesnt embrittle (ordinary soap will not do this).
Simply build up lather with warm water on the brush head and massage it from the ferrule to the tip – new brush!