They can be multiplied (cloned) by various culturing methods[1] and the new cells can be injected back into the bald scalp, where they would produce healthy hair.
[3] In 2008, Intercytex interpreted that they failed in fully developing the hair cloning therapy and decided to discontinue all research.
Scientists at the Technische Universität Berlin in Germany, with Intercytex and several other research teams, took animal cells and created follicles by using them.
Aderans Research Institute, a Japanese company, worked on what they called the "Ji Gami" process, which involved the removal of a small strip of the scalp, which is broken down into individual follicular stem cells.
[11][better source needed] In July 2019, a researcher from San Diego–based Stemson Therapeutics, partnered with UCSD, successfully grew his own follicles on a mouse using iPSC-derived epithelial and dermal cell therapy.
[13] In October 2022, researchers from the Japan-based Yokohama National University successfully cloned fully-grown mouse hair follicles for the first time in history.