The efficacy was proven already, hence why they bought patent for God knows how much from Brotzu. There are millions of useless snake oil products out there, do you think that they have proof they work ? No, only that they are safe for dermatological use.
I see no reason why wouldn't FIDIA if they were confident enough, brand it in that category and later on release the "improved" version.
lolol. So you think a company would by a patent not run ANY tests on the efficacy, stability, safety and just release it? absolutely ridiculous