I don't know of any 'Non-Human Grade" anti-e's. AFAIK, there is no vet grade Nolva, Femara, Arimidex, HCG, etc. That stuff is particular to humans, and i've never heard of any of that stuff being given to an animal for any reason. Never really heard of fakes either, it's too cheap and easy to be profitable to fake I would think. Anyone else?