Dr. Hans-Günther Machens, MD
Technical University of Munich
Worldwide recognized expert in regenerative medicine and tissue healing with decades of clinical and scientific pioneering work.
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Priority signals
Where your biology is asking for the most support
These rankings come straight from your answers. Each bar reflects how many of the markers we identified point to that biological system.
Suitable for you
This is what we have selected for you
Let's dive into your first supplement recommendation. If you are unsure about what to try first, this should be your go-to.
Medical Advisory Board
Expertise from the forefront of longevity research
Our medical advisory board brings together leading expertise in regenerative medicine, senolytics, and longevity research.
5
experts
946
combined publications
79
years of experience
Dr. Leonard Knoedler, MD
Harvard, Yale, UCLA
Surgeon and scientist focused on plastic surgery, regenerative medicine, and translational longevity research.
Dr. Jun Jiang, MD
Cornell, Technical University of Munich, Tongji University
Specialist in Plastic and Aesthetic Surgery with a focus on regenerative medicine and innovative minimally invasive therapies.
Dr. Sophia Griffin, PhD
Global Medical Content Lead at Resmed
PhD in Neuroscience and Physiology with many years of experience in clinical strategy, Medical Affairs, and health innovation.
Dr. Samuel Knoedler, MD
Harvard, Yale, TUM
Doctor and scientist focused on regenerative medicine, plastic surgery, and medical innovation - also a patent holder in the field of medical technology.
Complete your stack
Trusted thousands of times
What the Youngle community says
Read reviews from customers who have made Youngle a regular part of their daily routine.
Optimize your training
Support for an active everyday life
QUALITY STANDARDS
Quality you can trust
Each batch is independently tested in a German laboratory for purity, dosage accuracy, as well as bacteria, fungi, toxins, and heavy metals.
Independently tested
Premium raw materials, independently tested for dosage accuracy, purity, and safety.
Developed by doctors
Ingredients selected based on clinical research and scientific evidence.
Plant-based ingredients
Vegan formulations without ingredients of animal origin.
FAQ
Frequently Asked Questions
Starting a new supplement routine can feel like a big step. That's why we've compiled the most common questions and answers for you.
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How were these products selected for me?
Your recommendations are based on the answers you provided in the quiz. We take into account factors such as your goals, lifestyle, health background, and priorities to identify the products most relevant to you.
Then, our recommendation logic evaluates which supplements can offer you the greatest added value and combines them into a routine tailored to your individual needs. The result is a personal recommendation – not a one-size-fits-all package. -
Can I take the recommended products together?
As a rule, yes. Our recommendations are designed to work together as part of a balanced supplement routine. All ingredients are selected based on scientific findings, and we ensure that our recommendations combine products in a sensible way.
However, every person is different. If you have a medical condition, are pregnant, breastfeeding, or taking prescription medications, we recommend that you consult your doctor before starting a new supplement routine.
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When can I expect the first changes?
That depends on the specific product and your individual conditions. Some ingredients, like creatine or apigenin, can show noticeable effects within the first one to two weeks. Others—especially those that support cellular processes, like NMN or urolithin A—usually require four to twelve weeks of consistent use before the first benefits become apparent.
Our routines are designed for long-term, gradually building results rather than short-term stimulation. That’s why patience and consistent use are especially important. -
Can I combine the recommended products with my medications?
Our formulations contain well-researched ingredients in scientifically supported dosages, and each product is based on published research. However, we cannot account for every possible interaction with medications. If you are taking prescription medications—especially blood thinners, immunosuppressants, or diabetes medications—you should consult your treating doctor before taking new supplements. The full list of ingredients can be found on each product page.
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How does the return process work if a product doesn't work for me?
We offer a 30-day money-back guarantee. If for any reason you are not satisfied with your purchase, simply send us an email with your order number within 30 days and we will refund the full purchase price.
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Do you deliver to my country?
We ship from Germany to all EU member states as well as to most European countries. Your order usually reaches you within one to two business days.
Shipping is free for orders over €50. For orders below this amount, shipping costs are calculated at checkout based on your location. A complete list of the countries we deliver to and the current shipping costs can be found in our shipping information or directly at checkout. -
Can I subscribe and save?
Yes. Our products are also available by subscription. This way, you receive your routine automatically at the delivery interval you choose and save 15% on every delivery.
You can pause your subscription anytime through your customer account, skip individual deliveries, or cancel. A subscription makes it especially easy to stay consistent – and that consistency is one of the most important factors for long-term results. -
How do you differ from conventional supplement brands?
Three things make the difference. First, each of our formulations is based on clinical research. Additionally, we collaborate with scientists at the forefront of longevity research to always stay up to date with the latest evidence.
Second, every batch is independently tested by Limbach Analytics, a DAkkS-accredited German laboratory. We publish the test results transparently for our customers.
Third, your routine is personalized. Our quiz engine creates recommendations based on your goals, health profile, and lifestyle, instead of offering the same standard solution to everyone. We rely on high-quality, plant-based ingredients in scientifically supported dosages—without proprietary blends and without unnecessary fillers.