Estradiol (E2)
Primary estrogen regulating reproductive and bone health. Levels vary by sex, age, and cycle phase.
Estradiol (E2) is the most potent and biologically active estrogen hormone, produced mainly by the ovaries in women and in smaller amounts by the testes in men and the adrenal glands in both sexes. It plays a central role in the menstrual cycle, ovulation, and maintenance of reproductive tissues.
Estradiol also affects bone density, fat distribution, skin health, and cardiovascular function. Its levels fluctuate throughout the menstrual cycle and vary by age, sex, and physiological conditions such as pregnancy or menopause. Measurement of estradiol is commonly used to evaluate reproductive health and endocrine function.
Estradiol (E2)
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Our experts - not just algorithms - perform a whole-body analysis across cardiovascular, hormonal, metabolic, and immune systems. You receive an Axo Health Score, a Biological Age calculation, and a full breakdown of every marker: what it means, why it matters, and where you stand relative to true optimal ranges - not just lab reference ranges.
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