Scientists regenerate hair on bald mouse

After cultivating two different kinds of cells taken from hair follicles in mice, the team transplanted the cells into the hair follicles of a bald mouse. Within three weeks, 74% of the hair follicles implanted with the cells grew back hair. The new hair connected with nerves and surrounding tissues showing that the follicles had become fully functional and were able to regrow hair even after hair was pulled out. The scientists were also able to play around with the density and color of the hair by changing the type of cells they transplanted into the mouse’s hair follicles. When they used cells from a human hair follicle, a human hair grew.