Black spots on the silicone around the bathtub or in the shower are not just an aesthetic problem. They are persistent, annoying and – let's be honest – a bit disgusting, the result of too much moisture, not enough ventilation and organic chaos (residues of shampoo, gel, soap and everything else that shouldn't be there). Most often it is mold, which likes to take root in the very places where we have the least time and will for detective cleaning. And once it settles in – well, then it doesn't think of moving out just like that.