Lysine; amino acid status.
Blood collection at collection point
After your order you receive instructions by email
Make an appointment at a collection point near you
Blood collection at 1,000+ locations across the Netherlands
Lysine is an essential amino acid that our body cannot produce itself. It plays a crucial role in the production of proteins, enzymes, and hormones, and is important for the maintenance of skin and the immune system.
Testing Lysine is useful for people suffering from Rosacea, a chronic skin condition that causes redness and pimples on the face. Lysine may help reduce the symptoms of Rosacea through its role in skin health and immune function.
The Lysine test measures the amount of Lysine in the blood. The results can help identify nutritional deficiencies or assess whether Lysine supplementation might be beneficial for the management of Rosacea.
A high Lysine level may indicate sufficient intake of the amino acid through diet or supplements. It is rarely a sign of problems, but it is important not to consume too much Lysine, as this can lead to side effects such as stomach pain or diarrhea.
A low Lysine level may indicate a deficiency, which can contribute to skin problems, reduced immune function, and increased susceptibility to infections. In the case of Rosacea, a deficiency can worsen symptoms.
The underlying condition or the clinical significance of this test is insufficiently supported within mainstream Dutch medicine.
Rationale for this test
Het meten van lysine in bloed voor de behandeling van rosacea heeft geen wetenschappelijke basis binnen de Nederlandse reguliere geneeskunde. Lysine is een essentieel aminozuur dat via voeding wordt opgenomen, maar er is geen bewijs dat lysine-suppletie effectief is bij rosacea. Nederlandse zorgrichtlijnen benoemen lysine niet als diagnosticum of behandeling voor deze huidaandoening.
Do not interpret a result from this test as a diagnosis, and always discuss with your GP which regular diagnostics are appropriate for your symptoms.
Dutch clinical guidelines and healthcare organisations
We recommend consulting these independent sources before ordering a preventive health check.
Brochure on preventive health checks: careful choice, reliability, pros and cons, checklist.
Independent information about preventive health checks from the National Institute for Public Health and the Environment.
Reliable patient information about illnesses and complaints from Dutch GPs (NHG).
Public-facing website of the Dutch Society for Clinical Chemistry with explanations of blood tests and laboratory values.
Answers to what people usually want to know.
After ordering we generate a referral letter and email you the instructions. You pick a collection point yourself and book an appointment there. Blood is drawn at the location, processed at the lab, and your result arrives digitally.
Often within a few working days. How soon you can be seen depends on how busy the location is and the type of analysis. For specialist analyses we first ship collection materials, which takes a bit longer.
At most collection points yes. Some accept walk-ins. This is clearly indicated per location. You choose the location that works best for you.
That depends on the test. Whether fasting is required, and from what time, is clearly stated in the instructions you receive after ordering. No surprises at the counter.
It varies per analysis: from same-day to a few working days. Standard values often come back quickly; analyses that go to an external lab can take a bit longer. You get an email with a link to your digital result, including a short explanation per value.
We work with 1,000+ collection points across the Netherlands. After ordering you'll see which locations near you are available and you pick where you'd like to go.
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