Dorian Yates: Blood & Guts
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Anti-Aromatase System from PBL

If you are supplementing with prohormones and you are concerned about estrogenic side-effects, AAS may be the answer for you.

Performance Biomedical Laboratories (PBL) is an up-and-coming supplement company that has quickly gained a reputation for producing high-quality products that get results.

One of PBL’s hottest offerings to date is their widely popular Anti-Aromatase System (AAS). In particular, AAS has become the supplement of choice for prohormone users concerned with estrogenic side-effects.

AAS is marketed as the most innovative anticatabolic and anti-aromatase formula ever developed. It contains 1000 mgs of the chrysin and additional ingredients including: L-Glutamine, L-Taurine, Lysophosphatidyl Choline, and Vanadyl Sulfate.

Chrysin has been shown to lower estrogen levels and boost natural testosterone synthesis which is why many people using prohormones consider it a “must-have” supplement.

And as we found out in our discussions with PBL, in addition to being designed to prevent natural testosterone from being converted to estrogen in the human body, AAS is also designed to aid in the support of androgen production.

Q. What does AAS contain?

A. AAS contains the powerful isoflavone Chrysin (5,7-dihydroxyflavone), L- Glutamine, Lysophosphatidyl Choline, L-Taurine and Vanadyl Sulfate.

Q. What is chrysin and what does it do?

A. Chrysin is actually a phytochemical which is naturally found in the plant Passiflora coerulea. Chrysin's chemical name is 5,7-dyhydroxyflavone, and has been referred to as Flavone X. Studies have indicated that Chrysin has anti-estrogenic properties and may even support androgen production.

Q. Why should someone use an Anti-Aromatase?

A. Athletes are always looking for ways to support androgen production, especially testosterone. Many athletes have used popular hormonal precursors such as Androstenedione, Norandrostenedione, 5-Androstenediol, 4-Androstenediol, and DHEA. Other athletes have used anabolic steroids to enhance their levels of testosterone. The problem is these powerful hormonal substances convert to estrogen and inhibit the output of testosterone. Once testosterone is converted to estrogen, it is no longer beneficial for enhancing muscle. Research has shown that Chrysin literally blocks the aromatization of testosterone to estrogen.

Q. How does chrysin compare to a pharmaceutical Anti-Aromatase?

A. In one study, Chrysin was compared to the powerful anti-estrogenic drug Cytadren. Chrysin, surprisingly performed very well compared to Cytadren. This study is important due to the fact that Cytadren has shown the ability to inhibit estrogen production by up to 92%. In addition, serum testosterone levels increased by 300% and 500%.

Q. How about real-world experiences? What have users reported from supplementing with AAS?

A. Users have reported a definite hardening of the physique in as little as one month. Other users have reported increases in the effectiveness of hormonal precursors such as Androstenedione, Norandrostene and 5-Androdiol. Finally, users have reported that they do not hold as much water when taking AAS.

Special thanks to PBL for providing UMN with the scoop on AAS.

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