👉 Stilbestrol is a hormone produced by the ovaries in women. It plays a role in regulating the development and growth of the female reproductive system, including the ability to produce eggs and the menstrual cycle. Stilbestrol can also play a role in the prevention or treatment of certain types of breast cancer, as it has been shown to inhibit the activity of estrogen receptors on breast cells. Stilbestrol is primarily produced by the ovaries and is secreted into the bloodstream through the