Cortisol Test (Blood)
Check cortisol to assess stress, adrenal health, sleep and energy. Spot imbalances behind fatigue and mood. Order your home test today.
Product details: EUR 69 — InStock — SKU EU1 — GetTested
About this test
Key Benefits
Gain insight into baseline cortisol levels at their natural peak
Supports understanding of stress regulation and energy balance
Useful when evaluating fatigue, sleep disturbances, or weight-related changes
Provides a standardized measurement for morning cortisol levels
Simple at home blood test
What This Test Measures
This test measures total cortisol in the blood.
Cortisol
A glucocorticoid hormone produced by the adrenal glands in response to physical and emotional stress. It plays a key role in regulating blood sugar, metabolism, immune function, inflammation, and circadian rhythm.
Measuring cortisol provides insight into how the body manages stress and maintains physiological balance.
About Cortisol and Stress
Cortisol is essential for maintaining energy levels, stress response, and overall physiological stability.
It follows a daily rhythm, and measuring it in the morning reflects how the body is functioning at its peak hormonal output.
Sustained elevations in cortisol have been associated with patterns such as weight gain, particularly around the abdomen, difficulty losing weight, disrupted sleep, increased stress sensitivity, and changes in mood or energy levels.
Lower cortisol levels may be associated with fatigue, dizziness, low blood pressure, or reduced stress tolerance.
These patterns can develop gradually and are not always easy to identify through standard testing, which is why measuring cortisol can provide useful context when evaluating stress-related or metabolic changes.
How It Works
1. Order Your Kit
Purchase your test online
2. Collect Your Sample
Take a finger prick blood sample at home
3. Send It Back
Mail your sample to the laboratory
4. Receive Your Results
Access your results within 10–15 days
Sample Collection
The sample is collected using a dried blood spot (DBS) method through a simple finger-prick test at home. You collect a small amount of blood on a sample card, which is then sent to the laboratory for analysis.
This method is practical, minimally invasive, and well-suited for reliable home testing.
ISO-Certified Lab and Analysis
Your sample is analyzed in an ISO-certified laboratory using Electrochemiluminescence (ECL), a highly sensitive and widely used method for hormone measurement.
Biomarkers included
- Cortisol: Cortisol is a steroid hormone produced by the adrenal glands, known as the body's primary stress hormone. It plays a crucial role in regulating metabolism, immune response, and blood pressure, making its levels important for assessing stress response and adrenal function.
How to prepare
For the most reliable results, the sample should be taken in the morning between 07:00 and 08:00, when cortisol levels are naturally at their highest. It is recommended to take the test on an empty stomach and avoid intense physical activity beforehand, as this may temporarily influence cortisol levels.
Frequently asked questions
Why should cortisol be measured in the morning?
Cortisol follows a daily rhythm and is highest in the morning. Measuring at this time provides a consistent baseline value that reflects peak hormone levels.
What is the difference between a blood test and a saliva cortisol test?
A blood test measures cortisol at a single time point, providing a baseline value. Saliva tests are typically used to assess how cortisol levels change throughout the day.
Customer reviews
4.6/5 (5)
- 4/5 — Practical way to monitor adrenal health without needing a doctor’s appointment first.
- 5/5 — Helpful for checking my stress levels after months of fatigue.
- 4/5 — The morning fasting requirement was a bit annoying to schedule, but the results were very detailed.
- 5/5 — Clear instructions and fast turnaround time!
- 5/5 — Easy to follow labels and the lab results came back in 6 days.