Prohormone & Supplement Ingredients:

3,17-keto-etiochol-triene (ATD)

ATD has many names in sports supplements including:
1,4,6 etiollochan-dione
3,17-keto-etiochol-triene
androst-1,4,6-triene-3,17-dione
3,17-dioxo-etiochol-1,4,6-triene
and more

ATD is a potent irreversible aromatase inhibitor that inhibits estrogen biosynthesis by permanently binding and inactivating aromatase in adipose and peripheral tissue. It is used to control estrogen synthesis.

ATD is present in some over-the-counter bodybuilding supplements as well as topical solutions that work transdermally. ATD may cause a positive test for the anabolic steroid boldenone, of which it is a metabolite. It is prohibited in amateur and professional sports which forbids aromatase inhibitors. A related agent is exemestane (Aromasin).

Supplements with this ingredient:
SUS 500 Black (Prohormones)

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