What a totally sketchy sounding company. While they say that this stuff acts the same as nolva, they state only that the compound is "a very similar SERM" on a Q & A on their website.
"Question
Esto Suppress by Pharma Labs: How does this compare to the likes of nolva etc <snip>
Answer
Sorry Same were you talking about the prescription compound nolva as in tamoxifen citrate or the Gaspari Novedex XT? If the former this is a very similar SERM that is about equally effective to Tamoxifen, useful for blocking the action of estrogen in certain tissues, primarily from gyno etc but without shutting down sex drive which can happen to some users with ATD type anti estrogens. <snip>"