In the use of AAS, how to deal with estrogen is a compulsory course. When it comes to estrogen side effects, the first symptom that usually comes to mind is gyno. In fact, gyno is a late symptom of elevated estrogen levels. Before gyno appears, there are many symptoms that remind you that estrogen levels have been elevated and you …

SERM and AI are Bodybuilders used to reduce and prevent estrogen-related adverse reactions in AAS cycle. SERM is a modulator of estrogen receptors, including tamoxifen and clomiphene. AI is an aromatase inhibitor, including exemestane and Arimidex. AI is divided into two types, one is an irreversible steroid inhibitor, such as exemestane, that forms a permanent binding to the aromatase complex. …