Male-pattern hair loss or balding is reported to be responsible for ninety-five percent of hair loss in men. The loss of hair is due to changes in the male hormone (testosterone) and can also be caused by inherited traits from a person’s relatives. Hair follicles become more sensitive to the testosterone and shrink over time, resulting in little or no hair growth.
One over-the-counter solution that is applied to the scalp for hair loss is Rogaine (minoxidil). It acts by opening up the blood vessels and increasing the blood flow in the scalp, which activates hair growth. It must be applied consistently or any new growth will reportedly be lost. A prescription drug taken by mouth called Propecia (finasteride) blocks the production of the male hormone responsible for hair loss. Common side effects of finasteride are dizziness and headache.