


Rapamycin, also known as Sirolimus, is a biomarker and medication originally developed as an immunosuppressant to prevent organ transplant rejection. However, it also has potential for off-label use in anti-aging due to its properties that can influence cellular processes and metabolism. Pfizer sells this substance under the brand name Rapamune.
Testing Rapamycin/Sirolimus levels can be particularly useful for individuals who use this medication off-label for anti-aging purposes. Measuring the peak concentration of the substance in the blood 3 hours after intake can help optimize the dosage for personalized use, minimizing the risks of overdose and side effects.
The concentration of Rapamycin/Sirolimus in the blood indicates how much of the medication is currently present in the body. This can help determine whether the current dosage is effective for the intended purpose without increasing the risk of negative side effects.
A high level of Rapamycin/Sirolimus may indicate a potential risk for side effects, including, but not limited to, immune system suppression and other possible health complications. It may be an indication that the dosage needs adjustment.
A low level may indicate that the current dosage is not sufficient to achieve the desired effects, such as the potential anti-aging effects or the prevention of organ rejection. This may suggest a need for dose increase, but only under medical supervision.
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.
Usually very quickly. Collection points typically have slots within a few days, sometimes even same-day. It depends on how busy the location is. For a few 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.
Your personal Rapamycin/Sirolimus levels with our specialized blood test; essential for optimizing your dosage and minimizing potential side effects.



€70.00EUR
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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