4.5 / 5

Better days, every day

Dr. med. Marco Hartl
ONE LIFE SCIENCES

"

We are at the beginning of a new era in the areas of sports performance, longevity and biohacking. Future-oriented research on the human microbiome shows how natural ingredients can optimize energy, regeneration and resilience. By supporting the internal ecosystem, athletes and health-conscious people can tap into new energy levels — naturally.

Bestsellers

Better days, every day

Your new gut book by Dr. med. Marco Hartl

A healthy gut is the foundation of performance, recovery and focus. That's exactly what our new Healthy Gut Bundle is for.

On top: booklet "Good to Gut" – FREE

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CHOOSE YOUR GOAL

Discover the goals you can reach with ONE Life Sciences – from enhanced athletic performance and better sleep to faster recovery. Whether it's more energy, a stronger immune system or holistic well-being: ONE Life Sciences has the right solution.

Longevity

Performance

Sleep & Recovery

Immunity

Healthy Gut

Bundles

THE INNOVATIVE SCIENCE BEHIND ONE

Unlock the full potential of our supplements. Our unique blends combine the best natural ingredients to boost your performance and recovery.

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Developed by medical experts

Founded by physicians specializing in cell therapy and sports medicine, ONE Life Sciences combines the latest scientific findings with clinical experience – for more performance, faster recovery and lasting health.

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Highly effective, natural ingredients

All our active-blend products combine bioactive plant compounds – such as matcha, spirulina and resveratrol in GyCell – almost exclusively in organic quality, free from artificial additives, gluten and lactose.

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Your path to enhanced well-being

Lab-tested and compliant with EU food-safety standards, our supplements support cell regeneration, energy metabolism and DNA function – for more energy and resilience.

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Made for athletes & health-conscious people

Whether it's intense training, slowing down aging or preventive health care – ONE offers reliable support in every stage of life.

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ENERGY FOR CELLS

ONE stands for high performance

To reach Ironman podiums and beat personal bests – elite athletes trust ONE Life Sciences to boost their performance, recover faster and stay healthy for the long run.

Patrick Lange

3× Ironman World Champion

"For me, GYCELL is not just a supplement – it's an essential part of my training and nutrition routine. And I wouldn't want to be without it anymore."

Laura Siegemund

Professional tennis player | Wimbledon quarterfinalist 2025

"Thanks to GYCELL my recovery has improved significantly – even under strain in the heat I feel more capable and resilient."

Testimonials

Here our customers – from competitive athletes and entrepreneurs to health-conscious people – share their experiences with our products.

Sebastian Koschel

Fitness economist | Personal trainer | Nutrition scientist B.A. | Coach | Competitive triathlete

"It was important to me to see the improvement in my values in black and white. Today I can say with full conviction: ONE's products work – for me and for my clients."

Dr. Anselm Groda

Lawyer | Competitive triathlete

"After a performance low, I was actually back in the race within a short time. At almost 60, I'm on the start line of the (IRONMAN) World Championship in Nice (2025) again..."