estrogen types and functions
The primary function of estrogens is development of female secondary sexual characteristics. These includes breasts, endometrium, regulation of the menstrual cycle etc. In males estrogen helps in maturation of the sperm and maintenance of a healthy libido.
There are many types of estrogen therapy in many different forms -- pills, patches, suppositories, and more. The best type of hormone replacement therapy (HRT) depends on your health, your symptoms, personal preference, and what you need to get out of treatment. Here's an overview.