I wanna say it's effective, but from researching it dosage has to be done daily or higher dosage. I'll keep you updated on it if you guys want. It might be something different and he is telling me its 400. I know he told me he had Decca in pill form which I told him they don't make that. I am assuming he has the powder and cooks it pill form if it's really Decca. but I've got injectables from him that were legit.