Urinstein und Kalklöser

Urinstein und Kalklöser is a 750 ml household cleaning concentrate sold by the German retailer dm, formulated to dissolve stubborn urine stone deposits and limescale in toilets, sinks, and tiles. The product's acidic formula, typically based on citric or sulfamic acid, delivers fast stain removal but can be corrosive to delicate surfaces such as marble, natural stone, or painted finishes and requires protective gloves and good ventilation. While the recyclable plastic bottle makes disposal convenient, users should handle the solution carefully to avoid skin irritation or damage to unsuitable materials.