Male hormone tracker


This blood test is to measure total and free testosterone (calculated), oestradiol and SHBG levels in the blood.

Male hormone tracker

Tests Included


Testosterone is a male sex hormone that is produced in the testicles of men and to a lesser extent in the ovaries of women. In men, testosterone plays an important role in the development of the male reproductive tissues including the prostate and testes. Testosterone is responsible for a variety of traits which can range from; increasing the mass of bone and muscle to influencing the growth of hair on the body. Therefore, men with lower levels of testosterone may encounter a reduction in these traits, whilst women with raised testosterone may encounter an increase in these traits. Raised testosterone is commonly observed in women with polycystic ovaries syndrome in which increased body hair, acne or a deepened voice may be characteristic.
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SHBG is a protein that is produced by your liver and is able to bind tightly with three main sex hormones (dihydrotestosterone (DHT), testosterone and Estrogen). These hormones can be found in your blood in an unbound, free form in both women and men. However, when SHBG binds to them they become bound and unavailable to the cells of your body, therefore, SHBG can influence the amount of these free hormones that is available to your tissues. A high value for SHBG can indicate a lack of testosterone or oestrogen available to your tissues whilst a low SHBG value can indicate an excess amount of these hormones available. Causes for changes in the level of SHBG other than sex and age include hyperthyroidism and liver disease.
Oestradiol is an important steroid hormone that can be found in both men and women. In women, oestradiol is mainly produced by the ovaries and plays a key role in the maturation and maintenance of the female reproductive system.

In comparison, men produce considerably lower amounts of oestradiol. This is mainly produced by the testes where some testosterone is converted into oestradiol which is a vital component for the production of sperm. Oestradiol may also be produced to lesser extent by fat tissue in both men and women. Elevated levels of oestradiol may lead to a host of conditions ranging from depression to acne. A raised result has also been found to be associated with an increased risk of breast and uterine cancer. In contrast, low levels may affect the menstrual cycle, fertility, mental health or even lead to osteoporosis. In men, increased oestradiol can lead to infertility, loss of libido or the development of breast tissue. Levels may rise due to the accumulation of excessive fat tissue that secretes oestradiol.


Albumin is primarily produced by the liver and is an important protein in preventing blood from leaking out of blood vessels. Other functions of albumin range from transporting substances such as medications through the blood to playing a role in the growth and repair of tissues. Elevated levels of albumin are typically caused by dehydration. In contrast, low levels may be indicative of liver disease, inflammation or malnutrition. Levels may also be raised in conditions such as diabetes.

How it works

Collect Sample

We send you an easy-to-use kit to collect your blood sample.

Post Sample

Post your sample to our lab in the prepaid envelope provided.

View Results

View results securely in your own personal dashboard.

About this test

This package provides an insight into your levels of key hormones including testosterone, oestradiol and sex hormone-binding globulin (SHBG) to assess whether your values are within a normal, healthy range. Other parameters included in the package include albumin and an F-test value. In men, the amounts you have of all of these analytes can have an impact on several traits such as your sex drive, levels of energy, sperm production and muscle mass. Abnormal levels of these hormones could therefore lead to symptoms including; loss of libido, erectile function or infertility. Liver disease or the use of steroids can all have an impact on the levels of hormones in your body.

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