i didn't have as good luck with QV stuff as the others. i have taken the deca and enanthate, and i found the injection site to be extremely painful. my shoulders would require a heating pad to get the pain down. i couldn't lift my arms to even comb my hair, not to mention the painful glute shots that made lying down almost impossible. i also had fever-like reactions that kept me bed ridden for several days. could just be that my body doesn't like the stuff. i will only do human grade from this point on.