Thymosin Beta 4 has a role in tissue repair. Tβ4 has been found to play an important play an important role in protection, regeneration and remodeling of injured or damaged tissues. The gene for Tβ4 has also been found to be one of the first to be unregulated after injuries. Thymosin Beta 4 is most often prescribed for acute injury, surgical repair and for older athletes. It has most recently been shown to help regrow hair in addition to PRP.