"Among our 90 participants we repeatedly used 3D-scanning techniques to measure breast volume and saw up to an increase of 30%. Crucially, we also saw that the study participants were more satisfied with the size, shape and the growth of their breasts compared to participants who did not use progesterone,” adds Raya Geels, PhD candidate at Amsterdam UMC and the study’s first author.
The prog rocks? Yeah it tends to do that
yeah i already knew it works
source: my fat tits
Wish it had worked on me. I was on it for years with no real progress. I think genetics definitely take a significant role too and if your genes say no big booba, then no big booba for you.

I support trans rights and trans hagongalongabazoombas

Can confirm took progesterone, and have big gazongas.
That’s-a spicy progesterone

My boobs are still growing 4 years after starting hrt and 2 years after prog, it does really help. I also boof it
I’m so happy for you ladies!, says I, un-chaser-ishly.
Jokes aside I am happy when anyone can get the gender supporting care they need, also reading about trans hormone support is how I learned about spiro which can help with PCOS which seems pretty not-rare for cis women.
does it say when it’s best to start? i heard you’re supposed to wait until they stop growing from just estrogen
Same size was 90, so there might not be enough data?










