Most modern HRT uses estradiol, the same estrogen the ovaries produce. What differs is how it gets into your body:
- Oral (pill) - swallowed daily.
- Transdermal - absorbed through the skin via a patch (changed once or twice a week), gel, spray or cream.
- Vaginal - low-dose creams, tablets or rings aimed at local symptoms like dryness and urinary discomfort.
Pills and transdermal products are "systemic" - they treat whole-body symptoms like hot flashes. Low-dose vaginal products work mainly locally.


