Master's Brush Cleaner and Preserver will save you money, brushes and time. Specially formulated for synthetic and natural paint brushes. Use this product to remove acrylic, oil, watercolour paint, gouache, stains and more. No thinners or dangerous chemicals needed, simply use with water. This brush cleaner will help prevent acrylic build up in your brushes, making your brushes last longer. This product has a light lemon smell.