We prefer Yasmin to Yaz because Yaz only has 20 mcg of estrogen which is not optimal for women’s bone health. Also, we don’t prescribe Yasmin or Yaz unless the woman can commit to drinking at least 8 full glasses of water a day because it has a diuretic component and we don’t want the woman to be dehydrated and have headaches. Also, if there is any history of kidney disease, Yasmin is not a good option.