Is my diet pill causing my acne?

So I have been using this dietary supplement and I'm afraid it is causing my acne and I think maybe because it has caffeine in it. I have noticed a difference in my body but I also noticed that I have been breaking out more on my cheeks. I like using it cuz I have a busy schedule and I'm always to tired to work out but this gives me the energy I need to go work out. Could this be causing my acne? What do I need to do to keep using it and stop the breakouts?