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SCIENCE. NOTHING MORE.

Scientific evidence-based supplements for your daily health.


No room for interpretation  —

QED seeks proof 

QED (quod erat demonstrandum) means "which was to be demonstrated" in Latin. This abbreviation is traditionally written at the end of a mathematical proof. By choosing this abbreviation as our brand name, we commit to creating only evidence-based products.


What makes QED different

Open formulas

We believe in full transparency—our supplements containno proprietary blends, and wepublicly disclose every ingredientalong with its exact dosage, so you always know what you’re taking and why

Quality standard

All QED supplements are manufactured in a top-tier cGMP-certified production laboratory. Safety assurance Before market release, QED products are tested in an independent laboratory to ensure that final products are free from any hazardous substances or microorganisms.

Harmonized formulas 

The ingredients in QED products are carefully selected to support the body's natural processes through various distinct mechanisms. For example, QED Sleep contains several ingredients aimed at the same goal of providing quality sleep.

EDUCATION AND EMPOWERMENT 

Knowledge is power. We pursue the truth about supplements – what works, what doesn't, and why. Our goal is to empower people to take care of their health by making knowledge-based decisions.

Best ingredients 

In creating QED supplements, we only use substances whose effectiveness has been confirmed by science, and we source them exclusively from trusted EU manufacturers and distributors with the highest quality certifications.

Scientific Rigor

At QED, every ingredient is backed by peer-reviewed research, ensuring our supplements are formulated with the latest scientific advancements for maximum efficacy and safety.


QED as a trusted partner 

We strive for our assured quality, transparency, and scientific accuracy to build trust. We want to be a reliable partner to our customers by fulfilling our promises and offering the most important scientific innovations to our clients.

SCIENCE.

NOTHING MORE.

QED Sleep: measurable effect

Those who track their sleep with smart devices clearly see how QED Sleep contributes to improving their sleep quality. This product can improve sleep quality even with short sleep duration: it reduces awake time and extends REM phase sleep, which is important for brain function and neurological health.

"With QED Sleep I wake up rested, even if I didn’t sleep very long" - Laura K. 

"Finally something that brings back energy! 10 points" - Tomas U. 

"Recommended. Energy is really effective" - Lukas S. 

"I gifted NAD Booster to my mom. She said her youth came back :)" - Ieva L. 

"I received the package the next day, very satisfied with my shopping" - Sandra M.

Quality and Safety is paramount

That's why our supplements are made in a cGMP-certified, FDA-inspected manufacturing facility and tested by an independent third-party laboratory for safety and integrity