But the science behind hair cloning simplifies the surgery necessary for transplantation.
In the case of hereditary hair loss, as a man ages, some of his hair follicles become sensitive to the hormone dihydrotesterone (DHT), a chemical that is also partially responsible for the formation of male characteristics.
These hair follicles shrivel up and stop growing new hair. But what's not yet understood by scientists is why follicles in the back of the head never become sensitive to DHT, as hair continues growing there throughout a man's life.
To take advantage of the faithful follicles, a surgeon trained in hair cloning would remove a few hairs from the back of the head. But instead of inserting these hairs back into the top of the scalp, as in the case of transplantation, he would take them to a lab where the hairs can be broken down into individual cells and reproduced an almost infinite number of times. Those new hair cells can then be sent back to the doctor a few weeks later, where they are reinserted into the patient's scalp. In theory, the new follicles would begin to grow hair within three months.
Hair cloning would eliminate the cutting, suturing and scarring of a transplantation procedure, says Unger, and would allow for an almost limitless amount of scalp to be covered with hair.
But Unger abandoned his research on hair cloning after the results proved less-than-successful. He was only able to successfully transplant cloned follicles in four of 23 patients in two trials, and the hair only grew well in one patient.
"We can grow a millions of cells from one hair in a matter of weeks, says Unger. "We just haven't been able to get them to successfully grow in a human head."
Time will tell if experiments by Interytex prove successful, but Unger is confident that the science is there to make hair cloning a reality.
"It will be done, it's just a question of when," he says.