Abstract: An upright nail polish bottle includes a pair of inseparably adjoined compartments joined by a permanent common wall for different colored nail polishes. The dual nail polish bottle has a pair of closable brush handle caps with separate fluid accommodating brushes for the two different colored polishes in the inseparably joined compartments. In a preferred embodiment, one compartment is of a lesser height than the other compartment. The comparable brush applicator is also proportionately smaller than the other brush applicator. In such a configuration, the common wall permanently separating the pair of compartments from each other is not parallel to the side edges of the dual bottle, but intersects at least one side edge obliquely, either in a curved and straight slanted direction.