YouthBio Therapeutics is a longevity company presently developing gene therapies aimed at restoring more youthful epigenetic profiles with the help of partial reprogramming. It is presently running animal studies aimed at several therapeutic areas, and is also engaged in fundamental discovery research aimed at finding better reprogramming factors.

Cellular reprogramming is the process by which terminally differentiated cells can be returned back to a pluripotent (embryonic-like) state via Yamanaka factors or their analogs. This process also ameliorates the cells' aging hallmarks. Partial reprogramming is the method whereby Yamanaka factors are induced only for short periods, which is not enough to fully dedifferentiate cells beyond a point of no return but is enough to induce rejuvenation of said cells.