By the age of 50, as many as 85 percent of all men have experienced a thinning of their hair, according to the American Hair Loss Association, a consumer organization dedicated to the prevention and treatment of hair loss. Women, too, often see hair loss as they age, with as many as 40 percent of all women experiencing hair thinning. For women, the most common cause is female pattern hair loss (FPHL), a condition that affects millions, especially those 50 and older, according to the American Academy of Dermatology.
