Uric acid is a substance that is produced when the body breaks down purines. Purines are found in many foods, including meat, fish, and legumes. When uric acid builds up in the body, it can form crystals in the joints, which can cause pain and inflammation. Uric acid can also build up in the urine, and this can lead to kidney stones. There are many products on the market that claim to dissolve uric acid in urinals, but most of these products are not effective. The only product that has been shown to be effective at dissolving uric acid crystals is sodium bicarbonate (baking soda).