Animation of a rotating molecular model of estradiol, a sex hormone responsible for the growth of female reproductive organs and secondary sex characteristics. It is produced by the ovaries as well as other tissues. During puberty, estradiol levels increase in order to influence breast development, body shape, fat storage and skin development. Levels will also increase during pregnancy with the development of the placenta. Atoms are coloured black(carbon), grey (hydrogen) and red (oxygen). Original same as master.