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Welcome To RTN Therapy

Validated Support For Longevity |

At RTN Therapy, we blend history, science, and innovation to restore the natural balance of the body. Based on decades of clinical experience, our RTN Longevity Program revives the original biological formulations — Retisin, Lyastin, Floristen, and Silexil — first developed in the 1940s under Dr. Bohumír Rakušan.

Our Philosophy

Why Choose RTN Therapy

We believe longevity is not just about extending life — it’s about improving its quality. Our goal is to empower individuals to support regeneration, energy balance, and immunity through scientifically tested natural extracts.

Participatory research through the reInvented Immunology study

Personalized member programs for preventive or intensive care

Modern manufacturing and quality control

Decades of verified medical heritage

AI-powered knowledge access via the RTN GPT Assistant

RTN Longevity program

Especially favourable compliment but thoroughly unreserved saw she themselves.

Origins of RTN

The RTN program started in 1940s Czechoslovakia under RNDr. Bohumír Rakušan, developing plant and animal tissue extracts.

The RTN program started in 1940s Czechoslovakia under RNDr. Bohumír Rakušan, developing plant and animal tissue extracts.

Early Testing

RTN products—Retisin, Lyastin, Floristen, and Silexil—were clinically tested and used in public health.

RTN products—Retisin, Lyastin, Floristen, and Silexil—were clinically tested and used in public health.

ReInventedImmunology Study

Participants can use RTN supplements under supervision and share data for research.

 

Participants can use RTN supplements under supervision and share data for research.

 

Modern Supplements

Today, these formulas are revived as dietary supplements made to modern quality standards.

Today, these formulas are revived as dietary supplements made to modern quality standards.

Current Status

Once prescription-only, these products are now dietary supplements and cannot be claimed as medicines.

Once prescription-only, these products are now dietary supplements and cannot be claimed as medicines.

Commitment to Quality

We continue RTN’s tradition with careful production, transparency, and adherence to modern safety and quality standards.

We continue RTN’s tradition with careful production, transparency, and adherence to modern safety and quality standards.

Featured
Formulations

Retisin

contains nucleotides, precursors of ATP, which can support cellular energy

Bovine blood extract rich in nucleotides (AMP, GMP, CMP, etc.) which can provide building blocks for ATP synthesis.
It also contains a certain amount of amino acids and oligopeptides .
Action: potential support of aerobic cell metabolism .

Lyastine

serves as a source of phospholipids to support normal cell function

It contains lipid components from bovine blood (phospholipids, lysophospholipids, sterols) with the possibility of supporting  vasodilation  processes.
It can positively affect cell membranes  and contribute to tissue regeneration and  proper functioning of the nervous system .

Florist

St. John’s wort extract, rich in flavonoids and with a reduced content of reference substance

Purified extract of St. John’s wort with reduced content of hypericin and hyperforin.
It can contribute in particular to reducing inflammation , has antioxidant effects and is associated with supporting psychological balance .

Silexil

contains nucleotides, precursors of ATP, which cahistorically used for degenerative joint diseases (under re-research)n support cellular energy

According to historical records, it was used to improve the condition of the musculoskeletal system.
It is currently offered more as an experimental supplement as part of re-research (additional data is being collected).

About Us

About Us

Where History Meets Innovation
RTN Therapy continues the scientific legacy of the Eko company, established in Czechoslovakia in the 1940s by RNDr. PhMr. Bohumír Rakušan. The RTN program was once used in state hospitals for cellular regeneration, inflammation management, and immune balance. Today, RTN Therapeutics revives these proven formulations under modern research standards, combining biochemical precision with a holistic, data-driven approach. We integrate AI technology, ethical science, and global collaboration to make natural therapy smarter, safer, and more accessible.

Our History

The Beginning

The Beginning

The Beginning: Dr. Bohumír Rakušan and the Eko company develop biological extracts like Retisin and Lyastin for clinical use in hospitals.

The Beginning
The Expansion

The Expansion

Collaboration with university researchers leads to the creation of Imuregen, Juvenil, and other successors.

The Expansion
Rebirth

Rebirth

EkoRTN is established to revive the original RTN program under modern standards.

Rebirth
Rebuilding

Rebuilding

New labs, certified eco-grade production, and RTN GPT Assistant are launched.

Rebuilding
Public Access

Public Access

The reInvented Immunology Study begins — opening RTN’s knowledge and products to the public once again.

Public Access

Participate in reInventedImmunology

Democratizing Natural Supplement Research

Join a professionally conducted observational study exploring the use of RTN dietary supplements. This is not a traditional clinical trial but a structured way to gather real-world data on Retisin, Lyastin, Floristen, and Silexil.

How the Study Works

Your role and participation

Participants voluntarily take selected RTN supplements, regularly consult with their doctor or our nutrition specialist, and share information about their health, lifestyle, and subjective experiences, such as energy levels, sleep patterns, and physical activity.

Data Analysis

Turning information into insight

All shared data is anonymized and analyzed to better understand the potential long-term effects of RTN supplements on health, longevity, and chronic inflammatory conditions. This data also supports the digital RTN GPT Assistant platform.

Our Mission

Fulfilling Longevity Through Nature’s Vitality

Restore Naturally

Restore access to clinically tested natural formulations.

Restore Naturally

Restore access to clinically tested natural formulations.

Cellular Support

Support cellular and immune health through scientifically validated extracts.

Cellular Support

Support cellular and immune health through scientifically validated extracts.

Open Collaboration

Build a transparent research community where participants and doctors collaborate openly.

Open Collaboration

Build a transparent research community where participants and doctors collaborate openly.

Intelligent Wellness

Combine human insight with AI-driven learning to improve wellness for all.

Intelligent Wellness

Combine human insight with AI-driven learning to improve wellness for all.

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