PhytoHealth Phenomenol: An Evidence-Based Review

Phenomeol is a Post Cycle Therapy supplement by PhytoHealth which is intended to block Estrogen and allow your natural Testosterone levels to recovery after a cycle, resulting in a smooth transition and keeping your gains intact…

PhytoHealth Phenomenol



PhytoHealth claims that Phenomenol will:

  • Block Estrogen Through Multiple Mechanisms
  • Encourage Natural Test Production
  • Help You Keep Your Gains

Needless to say, this are the same general claims attached to just about every other PCT supplement, so what makes PhytoHealth’s Phenomenol different from all the others?  Let’s take a look at the ingredients and find out…

Phenomenol Ingredients

Phenomenol contains three primary active ingredients, two of which suppress Estrogen through different mechanisms and one which significantly enhances the effects of the others, resulting in a truly powerful Estrogen blocker.  Let’s dive in…

Androsta-3 5-diene-7 17-dione

Androsta-3 5-diene-7 17-dione is a potent inhibitor of Aromatase, the enzyme responsible for converting Testosterone to Estrogen.  Many ingredients are marketed as Aromatase Inhibitors (AIs), but most of them are completely ineffective.  Androsta-3 5-diene-7 17-dione, on the other hand, has demonstrated Aromatase Inhibition properties which can actaully be compared to the prescription AI, Aromasin.

Like Aromasin, Androsta-3 5-diene-7 17-dione is a suicide Aromatase Inhibitor meaning it permanantly binds to the active site of the Aromatase enzyme, rendering it completely inactive.

During any cycle (assuming you’re cycling something that actaully works and raises your Testosterone considerably), the Aromatase enzyme becomes more active because the body is trying to compensate by converting the excess Testosterone to Estrogen.  Stopping this conversion is the single most effective way to reduce Estrogen-rebound when you come off cycle and Androsta-3 5-diene-7 17-dione is hands down the most powerful legal AI there is.

What’s more, Phenomenol contains a whopping 75mg of Androsta-3 5-diene-7 17-dione per serving, about triple what you’ll find in competing PCT supplements.


3′-isoprenylgenistein is a Phyto-SERM (natural Selective Estrogen Receptor Modulator found in plants) isolated from Flemingia macrophylla, a unique herb which possesses both estrogenic and anti-estrogenic compounds.

In a study which compared the anti-estrogenic effects of several compounds found in Flemingia macrophylla, 3′-isoprenylgenistein was shown to be nearly as anti-estrogenic as Tamoxifen, a powerful prescription SERM.

Tamoxifen is considered the Holy Grail of Post Cycle Therapy agents.  Unilke Aromatase Inhibitors which bind to the Aromatase enzyme to prevent Testosterone/Estrogen conversion, SERMs have chemical structures that are so similar to Estrogen itself that they actually bind with Estrogen Receptors, rendering them unable to except actaul Estrogen molecules.

Basically, SERMs are the missing piece of most people’s Post Cycle Therapy regimen.  Aromatase Inhibitors are certainly a necessary component as well, but a solid SERM will guarantee that you remain free of Estrogen-related side effects by suppressing Estrogen at the receptor level.


6′,7′-dihydroxybergamottin (DHB) is a furanocoumarin found in Grapfruit which is a potent inhibitor of  the enzyme CY3PA which is responsible for oxidizing (degrading) various other substances, especially Aromatase Inhibitors.

Most supplement companies rely on cheaper absorption enhancers like Piperine which may work for some substances, but don’t necessarily increase the bioavailability of all other nutrients.  DHB on the other hand will amplify the effects of just about everything.  This makes it a powerful addition to the Phenomenol formula and definitely one of the things that separates it from other PCT supplements with Androsta-3 5-diene-7 17-dione.

Thanks to DHB, that 75mg of Androsta-3 5-diene-7 17-dione is going to be alot more effective than other supplements with the same dose.  Hopefully some other brands will catch on because DHB is truly a unique, effective addition to just about any anabolic support supplement, not just PCT supplements.

Phenomenol Ingredient Takeaway

Phenomenol provides the most comprehensive benefit of any PCT supplement we’ve seen by including not only a poweful Aromatase Inhibitor to reduce Estrogen conversion, but also a naturally occuring SERM that blocks Estrogen at the receptor.  An AI and a SERM are the fundamental components of any effective Post Cycle Therapy regimen, so Phenomenol really provides everything you need.

Is Phenomenol Safe?

There is nothing in Phenomenol that is inherently dangerous, but because Phenomenol contains DHB it should absolutely not be combined with an outside SERM.  You may think you need to go get some Tamoxifen from some sketchy research chemical site just to be safe, but you really don’t in this case.

DHB has actually been shown to drastically enhance the activity of Tamoxifen, it’s not wise to combine those things.  Phenomenol covers it all.


Depending on the strength and duration of your cycle, you should take anywhere from 1-2 servings of Phenomenol per day for atleast a couple weeks followng your cycle.  It would probably be overkill to consume more than 2 servings per day, even if you ran a pretty serious cycle, because Phenomenol already contains very high doses of key ingredients, relative to other PCT supplements you may encounter.

Where To Buy

Phenomenol is available at:

If you’re aware of any other retailers that carry Phenomenol, let us know in the comments below!

The Bottom Line

Phenomenol is hands down the best PCT Supplement we’ve encountered to date.  These days, the average PCT Supplement is nothing more than an ordinary blend of herbal extracts meant to boost your libido and restore your natural Testosterone, but very few of them can actaully suppress Estrogen which is really what you want to accomplish during your PCT.

Some contain Androsta-3 5-diene-7 17-dione, but that’s not going to cut it for every cycle.  Phenomenol is the only PCT Supplement we’re aware of that combines a powerful AI with an equally powerful SERM, the effects of are enhanced even further with DHB.

If you’re planning on running a cycle, or are currently running a cycle, Phenomenol is the best legal PCT Supplement you’re going to find. exists to educate the supplement community and seperate the science from the hype.

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