Trusted by 1,000+ Elite Athletes Across 85 Disciplines.
Founded 1993 · $4B in 2025 Sales · 1B+ Products Sold
Stop guessing which supplements actually fit you.
Tell Elaine what's going on: your sleep, energy, diet or a label you're unsure about. She explains the science in plain language, and you decide. No hard sell.
Hi, I'm Elaine. Ask me anything about supplements, or scan or upload a photo of a label and I'll explain what's inside.
How it works
Tell Elaine what's going on
Sleep, energy, digestion, or a product you already take. Plain questions are fine.
Understand the "why"
She links you to our evidence-informed Knowledge articles, so you can read the reasoning yourself.
Decide for yourself
If something fits, great. If not, that's fine too. No pressure, ever.
FitLine Product Story
World Class Standards
Good Manufacturing Practice
FitLine products are crafted using a unique formula that combines the highest standards with cutting-edge technology. This ensures our customers enjoy an exceptional product experience. Consumers can trust that "GMP Made in Germany" products meet rigorous, consistent quality and safety benchmarks.
ELAB Analytik GmbH
For us, premium quality means transparency and excellence. Our product quality is tested regularly and independently by ELAB Analytik GmbH. The laboratory takes random samples according to a defined test plan, either from stock or products in circulation. This ensures the independence of the tests.
Cologne List®
FitLine products are trusted by elite athletes across the globe because they are included on the Cologne List®—which publishes dietary supplements and sports nutrition with minimized doping risk.
Trusted by Athletes
FitLine Official Supplier
Our Team
We’re a community of everyday users from different countries who incorporate these supplements into our daily lives.
No pressure, no obligation—just real experiences, shared openly. If you’re curious, we’re happy to guide you on how to access them in your region.
Get in touch if you’d like to learn more.