What is progesterone?
A hormone that is often used alongside estrogen for transfeminine people undergoing HRT.

What does it do?
Taking progesterone can increase bone density, have a positive impact on sleep, decrease male pattern baldness, reduce oily skin, and increase breast growth.

Gender GP - Progesterone Benefits for Trans Women in Feminisation
JCEM - Progesterone Is Important for Transgender Women’s Therapy—Applying Evidence for the Benefits of Progesterone in Ciswomen