34-year-old Brian, who suffers from alopecia areata, has finally reunited with his hair.

After trying various treatments for alopecia, an autoimmune disease afflicting about 1 percent of men and women, causing hair to fall out often all over the body, Brian enrolled in a study this year at Columbia University Medical Center testing whether a drug approved for a bone marrow disorder could help people with the condition, according to the NY Times.

The researchers began testing one of the two drugs that they successfully tested on mice on seven women and five men. Those who had an intake of the drug, ruxolitinib, found the results to be rather shocking.

"Pretty quickly, there were sort of fringes. Then three or four large areas started to show hair growth," stated Brian.

By five months, he had plenty of hair on his head arms and even his back, according to the publication.

"I was blown away," he said.

Experts have noted that it is too early to know if the treatment will work for most patients and if there are significant side effects or safety concerns. The study is continuing, but so far a few participants did not regrow hair, stated Dr. Julian Mackay-Wiggan, director of Columbia's dermatology clinical research unit and an author of the study.

"It appears to work - not in everyone, but in the majority. We need a lot more data on the long-term risks in healthy individuals. But it's certainly very exciting in terms of hair growth. It was surprising how quickly and impressively the growth occurred," Mackay-Wiggan stated.

Although not everyone was able to experience the benefits of the drug, efforts are still being made towards the study and the treatment for alopecia, according to The Mirror.

"We've only begun testing the drug in patients, but if the drug continues to be successful and safe, it will have a dramatic positive impact on the lives of people with this disease," stated lead researcher Dr. Raphael Clynes from Columbia University Medical Center in New York.