this may not be what you want to hear, but if you are ONLY using it for your joints and not stacking with test for gaining muscle, Then I would stay away from it and use traditional ways of controlling joint pain. Ive had 5 surgery's on knee, shoulder, and foot so Im familar with joint pain. glucosamine/chrondroiton combo is ok, anti imflamitory's and arthritis meds work good too. get a doc to perscribe naprosin(or naproxin) for you. it works good for me