Wysong Biotic pH- is a pet supplement designed for cats and dogs needing assistance generating and maintaining an acidic urine to help prevent struvite/triple phosphate crystal formation. Wysong Biotic pH- dog and cat supplement restores nutrients which regulate metabolism to generate an acid urine. An acid urine has been demonstrated to not only be calculolytic (dissolves existing stones), but also preventive for the formation of the common struvite uroliths/crystals in Urological Syndrome. Unlike various medications, Wysong Biotic pH- is very easy to work with -- simply sprinkle onto your pet's food according to the guidelines on the label!