There are numerous types of hair loss pills, some are over the counter while some are prescription pills. Though over the counter pills can be taken without prescription, but taking over the counter pills may be risky and may harm your body. Before taking any type of pill whether over the counter or prescription, you must consult your doctor first. As there are numerous pills each address a specific cause of hair loss, how you can diagnose yourself what causes hair loss in your case and how you will choose the appropriate pill. Therefore, getting diagnosed is essential before taking any hair loss pills. As a number of factors are involved in hair loss, there are specific pills for treating each type of hair loss. Most commonly, hair loss is induced by lack of dietary substances like vitamins, minerals and zinc. Such pills are called supplementary pills that provide these minerals and vitamins to your skin. Hormonal fluctuation is also another cause of hair loss, certain pills are used for maintaining optimum hormonal level in your body. Weak immune system also causes hair loss that involve in degeneration of hair follicles. Over the counter hair loss products usually contains herbal extracts in their original form while prescription drugs contain synthetic substances. Both works, but herbal products are safest versus synthetics ones.