Build Your Own Blood Test

17-OH Progesterone is a steroid hormone that plays an important role in your hormonal balance. It serves as a building block for cortisol and androgens, and its levels may fluctuate throughout your menstrual cycle.

ACTH is a hormone from the pituitary gland that tells your adrenal glands to produce cortisol. Understanding your ACTH levels may offer insights into how your body manages stress and supports your hormonal well-being.

The AMH hormone comes from the granulosa cells around the small follicles queued up in your ovaries for a future ovulation. The blood value therefore gives an estimate of your ovarian reserve: how many follicles are still waiting in line. For women thinking about trying to conceive, about freezing eggs or about an IVF pathway, AMH is unusually practical for one reason: the test is not tied to a cycle day. You can have blood drawn at any point in your cycle, and you do not need to fast. Always read the result alongside your age. AMH is a planning number that helps you and your doctor make choices earlier and better informed. It is emphatically not a countdown clock, and not a prediction of whether you can get pregnant.

Androstenedione is a hormone your body uses to produce both estrogen and testosterone. Understanding your levels may help provide insight into hormonal balance, cycle health, and conditions that could affect your well-being.

Calcitonin is a thyroid hormone involved in calcium regulation and bone health. For women, understanding calcitonin levels may offer insights into thyroid function and mineral balance, which are important throughout different life stages.

Cortisol plays an important role in women's hormonal balance. Chronic stress may disrupt menstrual cycles, affect fertility, and influence mood. Monitoring supports a comprehensive hormonal health picture.

DHEA-S serves as a precursor to oestrogen and testosterone in women. Monitoring supports understanding of adrenal health, hormonal balance, and age-related changes.

DHT is an androgen that, even in small amounts, may influence skin health, hair growth, and hormonal balance in women. Elevated levels could suggest conditions such as PCOS.

Dopamine influences mood, motivation, and reward processing. Hormonal fluctuations throughout the menstrual cycle may affect dopamine balance, making monitoring valuable for women's wellness.

Estradiol (E2) is the primary estrogen guiding your menstrual cycle, fertility, and menopausal transition. Fluctuating levels may indicate changes in ovarian function. Your healthcare provider can help you understand what your results mean for your cycle and overall health.

Estrone (E1) becomes your primary estrogen during and after menopause, produced mainly in fat tissue. Monitoring E1 levels may provide insight into your menopausal transition. Your healthcare provider can help interpret what changes in estrone mean for your health journey.

Follicle-stimulating hormone (FSH) drives egg maturation and is a key indicator of ovarian reserve and menopausal status. Rising levels may signal your body is working harder to stimulate ovulation. Your healthcare provider can help you understand what FSH means for your fertility and cycle.

Free testosterone is the bioavailable fraction important for women's energy, mood, libido, and muscle tone. While present in smaller amounts than in men, balanced levels support overall wellbeing. Your healthcare provider can help interpret what your free testosterone means for your health.

IGF-1 plays an important role in women's health, supporting bone density, tissue repair, and hormonal balance. Monitoring this growth factor can provide valuable insight into your overall well-being.

IGF-BP3 is the main transport protein for IGF-1 and plays a role in bone health and tissue maintenance. For women, monitoring this marker can provide additional context for understanding hormonal and metabolic well-being.

Inhibin B is produced by developing ovarian follicles and may reflect your ovarian reserve and reproductive potential. This marker is particularly valuable for women exploring fertility or monitoring hormonal health.

LH is a key reproductive hormone that triggers ovulation and supports the menstrual cycle. Monitoring LH can provide valuable insight into your cycle regularity, fertility potential, and overall hormonal balance.

Melatonin regulates your sleep-wake cycle and may influence hormonal balance throughout the menstrual cycle. For women, quality sleep is closely connected to mood, energy, and reproductive health.

Parathyroid hormone (PTH) helps regulate calcium and phosphorus, which are essential for bone health. For women, PTH balance may be particularly relevant during hormonal transitions such as menopause.

Parathyroid hormone regulates calcium, which is especially important for women's bone health across all life stages. Monitoring PTH can provide insight into bone density maintenance, particularly during and after menopause.

Pregnenolone is the precursor to progesterone, estrogen, and other hormones vital to women's health. Monitoring this "mother hormone" can provide foundational insight into your overall hormonal production capacity.

Progesterone is a cornerstone of women's reproductive health, essential for ovulation confirmation, cycle regularity, and pregnancy support. Monitoring progesterone empowers you to understand your hormonal patterns and fertility.

Prolactin is essential for lactation and plays a broader role in menstrual cycle regulation and fertility. Monitoring prolactin can help women understand hormonal factors that may influence their reproductive health and well-being.

SHBG is a protein with one job that matters a great deal for women. It binds testosterone and oestradiol in your blood and holds on to them. The full name is sex hormone binding globulin. Hormone that is bound cannot reach your tissues. Your SHBG level therefore decides how much of your total testosterone is actually active. That makes it central for women on the pill, because oral oestrogens raise SHBG considerably. Your free testosterone falls with it, even when the total looks entirely normal. In PCOS the reverse happens: a low SHBG releases more free testosterone into the blood.

Serotonin is a neurotransmitter that may influence mood, sleep, and appetite. For women, serotonin levels can fluctuate with hormonal changes throughout the menstrual cycle, potentially affecting emotional well-being and comfort.

Total testosterone, while often associated with men, plays important roles in women's health too. It may influence energy, bone density, muscle tone, and libido. Women produce testosterone in smaller amounts through the ovaries and adrenal glands.

Free T3 is considered the most active thyroid hormone and may significantly influence women's menstrual cycles, fertility, and hormonal balance. Some healthcare providers note that thyroid function is closely connected to reproductive health in women.

Free T4 is the main thyroid hormone and may significantly influence women's menstrual regularity, fertility, and pregnancy health. Some healthcare providers emphasise the importance of optimal T4 levels for women planning conception or experiencing cycle irregularities.

Reverse T3 is an inactive thyroid hormone that may increase during stress, illness, or hormonal shifts. For women, elevated levels might influence menstrual regularity, energy, and fertility. Some providers consider it when evaluating unexplained cycle disturbances.

TPO antibodies may indicate autoimmune thyroid activity, which is more prevalent in women. Thyroid autoimmunity can potentially affect menstrual regularity, fertility, and hormonal balance. Understanding your TPO status may be valuable for your reproductive health planning.

In women the TSH level depends heavily on life stage. Outside pregnancy our usual range runs from 0.27 to 4.20 mE/L. The first trimester comes with lower limits. That is physiology, not an abnormality. With a high TSH the thyroid is usually running slow. A low TSH fits an overactive one. Around conception, pregnancy and the months after birth this number deserves extra attention. Always discuss an abnormal result with your midwife or doctor.

TRAb antibodies are associated with Graves' disease and may affect thyroid function. For women, these antibodies are especially relevant during pregnancy planning, as they can cross the placenta. Understanding your TRAb status may support informed reproductive health decisions.

TSI antibodies are associated with Graves' disease and may influence thyroid function. In women, thyroid health can be closely linked to menstrual cycle regularity and hormonal balance. Discuss any thyroid concerns with your healthcare provider for guidance.

Thyroglobulin is a thyroid protein that may be particularly relevant for women's health. Some healthcare providers note that thyroid gland function can influence menstrual regularity, fertility, and hormonal balance, making thyroglobulin monitoring potentially valuable.

Thyroglobulin Antibodies are immune markers that may be particularly relevant for women, as autoimmune thyroid conditions are more common in females. Their presence might influence menstrual regularity, fertility, and pregnancy outcomes.

Total T3 measures the most active thyroid hormone. In women, T3 levels may be closely linked to menstrual regularity, energy, and hormonal balance. Fluctuations during the menstrual cycle are possible. Your healthcare provider can help interpret your results.

Active Vitamin B12 measures the bioavailable form of B12 available to your cells. For women, B12 may play a role in hormonal balance, energy production, and reproductive health. This test could provide early insight into your B12 status.

Folate measures vitamin B9 in your blood, a nutrient considered especially important for women's health. Adequate folate may support hormonal balance, reproductive health, and healthy cell division throughout all life stages.

Holotranscobalamin measures the earliest marker of B12 depletion. For women, early detection may be particularly valuable as B12 status can influence hormonal health, energy levels, and reproductive wellbeing.

Intrinsic Factor Antibodies tests for autoimmune-related B12 malabsorption. Women may be at higher risk for autoimmune conditions, and this test could help explain persistent B12 deficiency that does not respond to dietary changes or oral supplementation.

MMA Blood measures a functional B12 marker that may reveal deficiency at the cellular level. For women, this is particularly relevant as B12 status may influence hormonal balance, energy levels, and reproductive health outcomes.

MMA Urine provides a non-invasive assessment of functional B12 at the cellular level. For women, this test may help monitor B12 status that could influence hormonal balance, energy, and overall wellbeing without the need for a blood draw.

Vitamin A measures retinol levels, a fat-soluble vitamin that may play a role in women's hormonal health, skin vitality, and immune function. Adequate levels could support reproductive health and overall wellbeing throughout all life stages.

Vitamin B1 (thiamine) is considered important for energy metabolism, which may be especially relevant during hormonal fluctuations. Some women may experience fatigue when levels are low. Consult your healthcare provider for personalised guidance.

Vitamin B12 is considered essential for red blood cell formation and neurological health in women. Hormonal changes, pregnancy, and certain contraceptives may influence B12 needs. Consult your healthcare provider for personalised assessment.

Vitamin B2 (riboflavin) is considered important for energy metabolism and may play a role in hormonal health for women. Some research suggests it could support migraine prevention. Consult your healthcare provider for personalised guidance.

Vitamin B3 (niacin) is considered important for NAD+ production and energy metabolism. For women, adequate levels may support hormonal balance and skin health. Healthcare providers can help assess whether your levels are optimal.

Vitamin B6 is considered important for women's hormonal health, mood regulation, and immune function. Some research suggests it may help manage premenstrual symptoms. Consult your healthcare provider for personalised assessment of your levels.

Vitamin B7 (biotin) is considered important for women's hair, skin, and nail health. Hormonal changes and pregnancy may increase biotin needs. Healthcare providers can help assess whether supplementation may be beneficial for you.

Vitamin C is considered important for women's immune health, collagen production for skin elasticity, and iron absorption. It may be especially relevant during menstruation and pregnancy. Consult your healthcare provider for personalised assessment.

Your vitamin D levels show how much vitamin D your body has in store. In the Netherlands that store depends almost entirely on the UVB your skin caught last summer. Two groups come out low unusually often. The first is women who are pregnant or breastfeeding. The second is women who cover their skin or have darker skin. So the month of the blood draw belongs with the result. Any advice about supplementing runs through your midwife or GP.

Vitamin E supports skin health, hormonal balance, and cellular protection — all important aspects of women's wellness throughout different life stages.

Vitamin K1 supports blood clotting and bone health, both important during menstruation, pregnancy, and menopause. Monitoring can help you understand your coagulation and bone status.