Prohormones, by themselves, have very little anabolic potency. A prohormone is a hormonal precursor, meaning that it will not act like an anabolic steroid until it is properly processed by the body.
It has only been over the last two decades that prohormones have been used by athletes to enhance performance. Though not generally as potent as anabolic steroids, prohormone use is not without its benefits. Prohormones are legal, and relatively inexpensive.
It is typical for a prohormone cycle to yield increased strength and muscle mass, while also decreasing body fat levels. Despite these positives, prohormone use is considered slightly more dangerous then using anabolic steroids.
Because prohormones are only avavilable in an oral form, they have a tendency to be hepatoxic – taxing the liver. Side effects vary greatly from user to user, but include high blood pressure, acne, hair loss, “bitch tits” – also known as an enlargement of breast tissue, prostate swelling, and a reduction in the body’s ability to naturally produce testosterone. This can also lead to “shut down,” or a decrease in sexual drive.
Post cycle therapy, or PCT, is a necessary follow up to a prohormone cycle. While the substances required for PCT is a highly debated subject, at minimum a trainee should follow a cycle of prohormones with a natural testosterone booster, a liver care product such as milk thistle, creatine, and a SERM or aromatase inhibitor.
Prohormone cycle times generally run 4-6 weeks. Post cycle therapy usually lasts 4 weeks. It is recommended that the time in between prohormone cycles should equal your previous cycle time (jn weeks) plus your PCT time (in weeks). So, if you ran a 4 week cycle of a popular prohormone, and followed it with a 4 week PCT, you should wait 8 weeks from the end of your cycle to start another.
Prohormones should not be used by inexperienced lifters, or persons under the age of 21.