The Future Is Now, Vol. LXXXVII: Stem Cell Hair Regeneration

Scientists have grown human hair follicles on the back of a hairless mouse, using tissue engineered pelage and vibrissa cells from stem cells and differentiated tissue. I've always said that organ regeneration would be achieved by vanity before necessity, and that hair replacement techniques would finance the development of full organ stem cell techniques.

Nature Communications 3, 784. 17 April 2012 Fully functional hair follicle regeneration through the rearrangement of stem cells and their niches Koh-ei Toyoshima,  Kyosuke Asakawa,  Naoko Ishibashi,  Hiroshi Toki,  Miho Ogawa,  Tomoko Hasegawa,  Tarou Irié,  Tetsuhiko Tachikawa,  Akio Sato,  Akira Takeda  & Takashi Tsuji 

(via @gammacounter)