Since the 1980s, drug therapy has increasingly become a realistic management option for baldness for men and women. Increased understanding of the importance of dihydrotestosterone in male and female pattern baldness has led to targeted intervention to prevent this hormone from acting on receptors in the scalp. Coupled with chance discoveries and the ever-present lure of a breakthrough involving stem cells and hair multiplication, scientifically proven baldness treatments continue to be an area of research that receives a large amount of funding. More than half of men are affected by male pattern baldness by age 50, and baldness treatment is estimated to be a US $1 billion per year industry.

General concerns

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It is easier to prevent the aging and falling out of healthy hairs than to regrow hair in follicles that are already dormant. There are products that have good success rates with regrowth, including the scientifically proven finasteride (marketed in the U.S. as Propecia) and minoxidil (marketed in the U.S. as Rogaine, and some places as Regaine). Without preventive treatment, in three double-blind, placebo-controlled, randomized studies, 72% of the balding men on placebo had lost hair compared to baseline by 24 months. This is compared to 83% of participants on Propecia experiencing either no more hair loss or regrowth. See Prevent Hair loss, don't Regrow?

The prospective treatment of hair multiplication/hair cloning, which extracts self-replenishing follicle stem cells, multiplies them many times over in the lab, and microinjects them into the scalp, has been shown to work in mice, and is currently under development, expected by some scientists to be available to the public in 2009-2015. Subsequent versions of the treatment are expected by some scientists to be able to cause these follicle stem cells to simply signal the surrounding hair follicles to rejuvenate.

More on [ Baldness treatments ]

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