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Because higher than normal testosterone signals to the body that there is too much testosterone and begins converting it to estrogen with an enzyme called Aromatase.
Some steroids tend to convert more readily than others. Regular testosterone has a small conversion rate (and the more you take, the more will be converted) while something like dianabol converts heavily into estrogen and requires an aromatase inhibitor (AI)
Certain steroids are prized for their potency whilst not converting to estrogen at all. Trenbolone is one such example. Make no mistake though, tren has some serious side effects that must be managed by users. The most significant of which are mood swings, organ damage, and progestin related side effects. Tren can actually make you lactate if you’re susceptible to it and don’t manage it with other medication.
“Estrogen blockers” are more correctly called aromatase inhibitors. The most common of which is anastrozole, aka arimidex. Letrozole is another commonly used AI that is more potent. These work to actively eliminate estrogen in the body.
Another type of drug that some may mistakenly refer to as an estrogen blocker are called SERMS. A SERM is a Selective Estrogen Receptor Modulator. These essentially mimic estrogen in the body. They bind to estrogen receptors such as those in the chest and stop men from forming gynocamastia. They’re also valuable because, just as high testosterone causes estrogen production, high estrogen signals to the male body to start testosterone production. So SERMS are taken as PCT (post cycle therapy) to get men back to normal after taking steroids.
Some steroids tend to convert more readily than others. Regular testosterone has a small conversion rate (and the more you take, the more will be converted) while something like dianabol converts heavily into estrogen and requires an aromatase inhibitor (AI)
Certain steroids are prized for their potency whilst not converting to estrogen at all. Trenbolone is one such example. Make no mistake though, tren has some serious side effects that must be managed by users. The most significant of which are mood swings, organ damage, and progestin related side effects. Tren can actually make you lactate if you’re susceptible to it and don’t manage it with other medication.
“Estrogen blockers” are more correctly called aromatase inhibitors. The most common of which is anastrozole, aka arimidex. Letrozole is another commonly used AI that is more potent. These work to actively eliminate estrogen in the body.
Another type of drug that some may mistakenly refer to as an estrogen blocker are called SERMS. A SERM is a Selective Estrogen Receptor Modulator. These essentially mimic estrogen in the body. They bind to estrogen receptors such as those in the chest and stop men from forming gynocamastia. They’re also valuable because, just as high testosterone causes estrogen production, high estrogen signals to the male body to start testosterone production. So SERMS are taken as PCT (post cycle therapy) to get men back to normal after taking steroids.