
Vitamin B1 Check – energy & nerves in balance.
Vitamin B1 (thiamine) is essential for carbohydrate metabolism, energy production, and nerve function. It supports the cardiovascular system and is vital for concentration and mental performance. With the Vitamin B1 Check, you can conveniently check your vitamin status from home—reliably and professionally analyzed in the lab.
A capillary blood sample in a tube is all it takes to accurately determine your vitamin B1 level. You will receive your results securely and digitally, with clear reference ranges.
Measured parameter
Your benefits at a glance
- Gezielter Überblick über deinen Vitamin-B1-Status
- Convenient at-home sample collection—simple & discreet
- Professional lab analysis – precision just like at the doctor’s office
- Hilfreich bei Müdigkeit, Leistungsabfall oder Nervensymptomen
- Fast results – secure & accessible digitally
- Clear reference ranges & easy-to-understand presentation
How it works
- Order: Have the test kit conveniently delivered to your home.
- Collect your sample: Use the included lancet to collect capillary blood and fill the small sample tube.
- Return: Send the tube to the lab in the prepaid envelope.
- Access results: View your report digitally and securely – including reference ranges.
Who is this test for?
For anyone who wants to check their energy and nerve health—for example, if you’re experiencing fatigue, concentration problems, cardiovascular issues, or suspect a vitamin deficiency.
This test is for preliminary health screening and does not replace a doctor’s examination. If you notice any abnormal results or symptoms, please consult a physician.
Sample collection process
1. Collect sample at home
Read the enclosed instructions carefully before starting. Collecting the blood sample is straightforward and only takes a few steps.
2. Scan barcode
Simply scan the included barcode in the DoctorBox app – this ensures your sample is uniquely assigned to you.
3. Send samples
Package the blood sample as described in the instructions and, if possible, drop the prepaid envelope in the mail on the same day.
4. Your results in the app
After the lab analysis, you’ll get your result directly in the DoctorBox app – clear, easy to understand, and accessible anytime.




