Thymosin Beta 4 has been categorically proven in numerous research studies to promote advanced healing in human muscle, organ and bone tissue. A simple google search will provide you with all you need. It's main medical function when administered in the large injected dosages like the Essendon players received is to help with the quicker healing of heart tissue after major heart attacks, it also promotes the same kind of rapid healing in all muscle tissue.
It is banned because the majority of increase in athletes fitness comes from making small breaks in muscle tissue due to excercise and having them repair stronger. Tb4 speeds this process up to superhuman levels.
Saty I respect your love of the Mfc and your enormous contribution to most threads, particularly training.
But Jake Melksham was found guilty of taking Tb4 in large dosages to aid his athletic performance at a time when it was banned. He is a drug cheat, he's done his time and will be welcomed back by MFC supporters but no amount of blurring lines because you are unaware of details of peptides like Tb4 changes that fact.