Systemic Estrogen: Transdermal Patch + Low-Dose Oral Estradiol
Haver explains that she was on the highest-dose patch and felt great, but her serum estradiol levels were below the bone-protective threshold. She considered adding a second patch but faced insurance issues. She opted for low-dose oral estradiol at night, which not only boosted her estradiol levels but also normalized her cholesterol. She emphasizes that this is an individualized solution based on her labs and goals, not a standard recommendation. She also notes that oral estrogen's effect on SHBG can be problematic for libido, so monitoring is important.
Transdermal estradiol diffuses through skin directly into bloodstream, avoiding hepatic first-pass metabolism, thus not increasing clotting factors or SHBG. Oral estradiol undergoes first-pass metabolism in the liver, which upregulates LDL receptors and improves lipid profiles, but also increases SHBG and clotting factors slightly. The combination aims to achieve a serum estradiol level sufficient for bone remodeling (above 70 pg/mL) while maintaining steady brain levels.
Haver shares that her cholesterol rose shockingly in menopause. Diet, exercise, and the patch brought it down somewhat, but adding oral estradiol normalized it. She takes it at night alongside other nighttime medications for convenience.
I am on the highest dose patch. There's no more than this. And I measured my levels twice and they did not approach bone protection. So, my symptoms were controlled. My bones were probably needing more for maximum protection. So, I said, 'Okay, I can either add another patch to this, which would be fine, but it it gets a little sticky with insurance companies because mine are covered, or I can add a really low dose of oral estradiol at night.'

