But hair loss is traumatic for many people, according to a Consumer Reports survey of more than 8,000 subscribers.
"We asked people a broad spectrum of questions as to what worked and what didn't when it came to treating pattern baldness," said Tod Marks, senior editor at Consumer Reports.
"When it came to Finasteride, 27 percent of those men we surveyed said it was very effective, and another 41 percent said it was somewhat effective. So there's more hope with Finasteride than there is with almost anything else," Marks said.
"Only four percent of those surveyed said it was very effective at treating hair loss," Marks said.
Dr. Robert Bernstein, a hair restoration specialist, says he treats many patients for baldness.
"Of the two, Propecia is a lot more effective. But we use both in many patients," said Dr. Bernstein.
And for hiding hair loss, wearing a wig or toupee won the most praise. You could also shave your head like Bruce Willis.
Losing your hair affects women, too. But Propecia isn't approved for women - and in fact, it can pose a serious danger to women of childbearing age. Experts found that women who attribute their hair loss to stress found changing their diet and exercise was relatively effective.