In 1998, Finasteride (sold under the brand name Propecia) became the second prescribed pill to help prevent hair loss for men. This pill (not be used by women or children) made it possible for men in the early stages of hair loss to keep their remaining hair and, in some cases, grow back some hair that was recently lost. Eighty-five percent of men stopped losing their hair while taking Propecia; however, some side effects were noted, such as a decline in sex drive, difficulty in achieving an erection, or a decrease in the amount of semen.
Another revolutionary advancement in 1998 was a laser-light treatment to stop hair loss and stimulate hair growth. The Canadian company which invented this process recommended customers undertake two thirty-minute sessions twice a week in addition to using their own branded shower head filter, shampoo, conditioner, and nutritional supplements. If customers stuck to this regulated regime, the company claimed that no further signs of hair loss would occur, and some people would show signs of new hair growth.