Some side effects of prohormone supplementation can include acne breakouts, temporary hair loss, and increased sensitivity of the breast tissue. To help minimize these undesirable side effects, many users add a process known as post cycle therapy. Completing post cycle therapy entails taking an additional supplement that will offset spikes in testosterone levels and clear any toxins that have accumulated in the liver. Since prohormones are processed and broken down in the liver, it can add more stress on this organ than normal. These supplements can also lead to increases in blood pressure, which is another reason why post cycle therapy is a good idea.