"Human grade" is just a name we give anabolics that were produced specifically for human use, usually availible by prescription through legit pharmacies (companies like jelfa, organon, lilly, shering, astra zenica etc etc.) "Vet" gear is just gear that wasnt made with the strict set of guidlines that a pharmaceutical company must adhere to when producing human grade stuff (Pet pharma, QV, etc). What do you get when you make your own gear? Call it what you will, it works regarless of its "grade".