All compounds, before it can be shown to be effective orally,generally go through several stages of testing ... We have in-vitro experiments. Then, we have in vivo testing in animals, usually injections. If one is lucky, perhaps we can get to test oral administration.
In any case, regarding myostatin blockers, I have no idea at what stage of "development" it is at. For goodness's sakes, the idea was tested on mice with genetic mutations. ok, they also tested on mice using specific drug (probably injections) ... That was the last "scientific" bit of information I read about it.
Since then, I have not heard one iota of news that indicates proper testing, in vitro experiments simulating conditions in human body, or oral bioavailability testing on animals ...
At this point, the search for "Golden Fleece" is not going anywhere. Supp. companies have scrambled around, trying to get on the myostatin sweepstakes, hoping to get "lucky."
The chances of something like that working out is 1 in a 1000,000,000.