The Zellen Eco-Friendly Brush Cleaner 500ml features a premium, water-based studio maintenance solution. The non-solvent, biodegradable formula contains zero toxic fumes. It safely strips wet or dried oil residues. It removes thick acrylic paint from delicate bristles. Odourless compounds preserve synthetic and natural hair softness over time. This local formulation requires a simple clean water rinse. It functions as a safe, essential classroom asset.