| Even though the ovaries cease producing estradiol, estriol continues to be made by the adrenal glands and in fat cells. |
| It is a necessary precursor of the estradiol, androsterone, and other hormones. |
| Testosterone and estradiol follow this rule, but progesterone is an exception. |
| I assume that you're taking an oral dose of estriol or some combination of estriol, estrone, and estradiol. |
| Steroid hormones such as progesterone, testosterone, and estradiol are derived from cholesterol, a major constituent of biomembranes. |
| Then there was balancing estradiol with progestins and, in some users, with estriol. |
