Ok this is the people who have a lot of questions on sups and judge it's effectiveness. Do these things first and then see if you get results.
1) eat for your goal, don't think you're going to take a test booster and see PH gains if you're not even eating an increase in calories.
2) make sure u are lifting hard, can't go to the gym one day a week and do bicep curls and get huge.
3) use something for more than 2-3 weeks before u say you're not getting an effect, may take 2 bottles of certain products sometimes.
4) sups come last, sure a lot can be fun as hell to use but it only gives u the edge, it shouldn't make or break you.
5) some of my favorite sups are creatine, solid protein powder & a multi vitamin...
enjoy try that before a PH