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Estradiol Test (OEST)


A simple finger-prick test to measure Estradiol (E2) in the body. 


A simple finger-prick test to measure Estradiol (E2) in the body. 


Which biomarkers are tested?

Estradiol (E2)


Who should take this test?

  • Women with irregular periods, abnormal vaginal bleeding or with difficulty getting pregnant.


What is the process?

  1. Order online
  2. Receive a discrete test kit 
  3. Collect the sample
  4. Post the kit using free packaging provided
  5. Receive your results reviewed by our clinical team


Special instructions

No test preparation is needed, but the timing of the sample will be correlated with your menstrual cycle. 

If you are using hormone-gels or hormone-pessaries, avoid taking the sample from the finger you usually use to handle those medicines.

Certain medications may affect the result (contraceptive pill, estrogen replacement therapy, glucocorticoids, phenothiazines, tetracycline and ampicillin).


How long will it take to get the results?

Up to 2 working days


About Estrogen

Estrogen is a female hormone that is secreted mainly by the ovaries and in small quantities by the adrenal glands.  There are three main forms of estrogen: 

Estrone (E1): is the major estrogen produced after the menopause. It is derived from chemicals released from the adrenal gland and is also made in adipose tissue (fat).

Estradiol (E2): is the most active estrogen, mainly produced in the ovary in women and therefore falls at the menopause. Normal levels of estradiol are important for ovulation, conception, and pregnancy, in addition to promoting healthy bone structure and regulating cholesterol levels in females.

Estriol (E3): is the major estrogen in pregnancy, with relatively large amounts produced in the placenta. Estriol levels start to rise in the eighth week of pregnancy and continue to rise until shortly before delivery. 

Andreia Trigo RN



The Small Book of Fertility Hormones


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