Use this nontoxic, plant-based liquid cleaner to care for and thoroughly clean your brushes, knives and containers between uses. The stand out feature of this brush cleaner is that it is 100% non-toxic and non-flammable making it aeroplane and freight safe, too.Ideal for protecting your health as well as the planet, the Green range by Sennelier is safe for pregnant women and anyone with allergies. Green products also reduce environmental impacts, as well as trips to the hazardous waste depot, as they can be safely rinsed down the drain.