Progesterone

Discussion of progesterone and breast growth

Some people see significant breast development from progesterone and some don't. It fits with my hypothesis that being trans is a variety of sex hormone syndromes and exactly what is needed will depend on exactly what the details are of the sex hormone syndrome in question for that individual.

Also, IF step one does, in fact, produce progesterone, this WILL make a difference for SOME people with sex hormone syndromes under the trans umbrella.