Lit-Control pH Down acts immediately to inhibit the growth of crystals in the urinary system, while also lowering the pH of the urine (acidifying it). Decreases urine pH. Helps reduce the risks of alkaline urine. It helps maintain good urinary health. Lit-Control pH Down's patented formulation contains L-methionine, which lowers urinary pH in people who form stones due to excessively alkaline urine or as a result of a urinary tract infection, such as urinary stones. This acidification of urine, along with phytate, a potent crystallization inhibitor, helps prevent the formation of crystals in the urinary tract. Lit-Control pH Down helps maintain good urinary tract health in patients with lithiasis. How to use: Take one Lit-Control pH Down capsule twice a day with a glass of water during breakfast and dinner. Contact your doctor if you need to adjust your dosage. It is recommended to continue taking the product for at least 6 months after having kidney colic or until the next visit to your doctor.