
Originally Posted by
BigJames
I may be wrong, but I do not think Letro will do anything to combat progesterone related sides. It is an aromataze inhibitor so it will prevent the release of aromataze which in turn prevents test from being turned into estrogen. Therefore estrogen that would have caused gyno never exists in your system.
Progesterone and Prolactin are increased when on any progestin (deca, tren, etc.). Prolactin is the hormone that causes lactation in women and currently has no known physiological purpose in men (that I am aware of). The gyno casued by progestins needs to be combated with bromo, cabergnol, or Vit B6.
Letro at .25mg EOD should be a sufficient dose to inhibit aromataze as it is a very powerful compound. However, the reduced estrogen in your system can negatively effect skin tone, natural GH production, sleep, nails, and arguably most importantly (and ironically) sexual performance. As mentioned above, I doubt it would be as effective at combating the gyno from tren as cabergnol and cabergnol has in some cases caused an increase in libido with some people.
Just my 2 cents, if I am wrong about letro someone let me know, but that it my understanding...