This is a proprietary formula developed by SynergyRx. Minoxidil, the primary ingredient in Rogaine, helps keep the hair that you currently have. Finasteride, the main in ingredient in the oral medication Propecia, helps to regrow your hair without the harmful side effects of reduced sex drive, breast enlargement, and gynecomastia. Ketoconazole, helps keep the scalp healthy and without a healthy scalp hair cannot grow. Azelaic acid helps the skin cells on the scalp regenerate quicker causing faster hair regrowth.