Progormones: 5AA (5-alpha androstenediol)

buff guy lifting5-Alpha androstenediol, or 5AA for short, may be listed under the nomenclature 5a-androstan-3a, 17b-diol. 5AA is supposedly converted to DHT in the liver, and then deactivated and converted back to 5AA in the muscle. This is not necessarily a bad thing, as 5AA itself may be more effective for muscle building than DHT.

5AA does not convert to estrogen, and may actually have an anti-estrogenic effect. Estrogenic side effects are not common with 5AA, and it can easily be stacked with compounds that do convert to estrogen for a balanced stack. 5AA is great for cutting cycles as it appears to have a hardening effect. Androgenic side effects such as acne and hair loss are possible with this compound even at low doses, as it is considerably more androgenic than it is anabolic. 5AA is not a methylated prohormone, so it does not stress the liver to any signifacant degree and can easily be stacked with methylated prohormones or steroids.

As with many other prohormones, 5AA needs to be taken in high, frequent doses to experience significant results. Taking 5AA with a fat containing meal may increase absorption, so dosing with meals is recommended.

5AA was banned included in the Anabolic Steroid Control Act of 2004, and was banned as of January 20th, 2005. It is no longer available, but many prohormones that give similar effects are still completely legal and available over the counter. For 100% legal and effective prohormones, click here.


Roberts, S (2009). Anabolic Pharmacology.

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