This liquid product converts to a foam when it is dispensed from the bottle. The fine-pored foam contains highly concentrated urea and lactic acid and can be precisely applied for rapid softening of hard skin. After just five minutes, the softened skin can be easily removed, so treatment time is significantly reduced. The foam produced remains stable on the skin and does not swell up. This prevents unintentional softening of the surrounding skin.NOTICE! Does not include the sprayer. rn