A synthetic urine solution is described. The synthetic urine solution is a shelf stable, food grade composition formed of water having a pH between 3 and 10. A thickening agent is dissolved within the water to form a solution having a specific gravity between 1.025 g/cm3 and 1.225 g/cm3. To provide a realistic appearance and odor, a coloring agent and urea are dissolved within the solution. Finally, to provide a shelf stable product, a preservative is also dissolved within the solution.