In the early 20th century, they used to extract CEEs from pregnant mare urine for HRT. And now we have all the cool modern stuff. Here is a Wikipedia article to get started. I also recommend researching ancient transgender history for more info since it is really interesting.
In the early 20th century, they used to extract CEEs from pregnant mare urine for HRT. And now we have all the cool modern stuff. Here is a Wikipedia article to get started. I also recommend researching ancient transgender history for more info since it is really interesting.