WHAT WE DO

Advancing Science in the Preventative Antivirals Category 

Advancing Science in the
Preventative Antivirals Category 

We invest in clinical research to unlock the preventative, physical barrier forming qualities of lambda carrageenan (L-CRG), a type of naturally occurring sulfated polysaccharide derived from red seaweed, on a broad spectrum of viruses.  

The National Cancer Institute, Rutgers University, and McGill University, have produced strong evidence supporting L-CRG's antiviral effectiveness.

Our uncompromising commitment to science combined with strong global IP protection for our discoveries create a solid roadmap towards a healthier future.  

WHAT WE DO

Advancing Science in the Preventative Antivirals Category 

We invest in clinical research to unlock the preventative, physical barrier forming qualities of lambda carrageenan (L-CRG), a type of naturally occurring sulfated polysaccharide derived from red seaweed, on a broad spectrum of viruses.  

The National Cancer Institute, Rutgers University, and McGill University, have produced strong evidence supporting L-CRG's antiviral effectiveness.

Our uncompromising commitment to science combined with strong global IP protection for our discoveries create a solid roadmap towards a healthier future.  

Universal Preventative Antiviral Treatments

Universal Preventative
Antiviral Treatments

Universal Preventative
Antiviral Treatments

Lambda Carrageenan (L-CRG) is emerging as one of the most promising preventative antiviral solutions effective against a broad spectrum of viruses and viral mutations. Its unique, non-chemical, barrier forming mechanism of action makes it virus agnostic and offers a new proactive approach to viral threats. 

Lambda Carrageenan (L-CRG) is emerging as one of the most promising preventative antiviral solutions effective against a broad spectrum of viruses and viral mutations. Its unique, non-chemical, barrier forming mechanism of action makes it virus agnostic and offers a new proactive approach to viral threats. 

the problem

Protection Against Viral Mutations

Protection Against Viral Mutations

Viruses, especially RNA viruses like influenza and coronaviruses, are prone to mutations that arise in the replication process. These mutations can alter viral surface proteins, which are key targets for vaccines. As a result, vaccines can become less effective over time, creating an ongoing race between virus evolution and vaccine development. 

History of Influenza Pandemics
Timeline of influenza pandemics showing H1N1 (1918), H2N2 (1957), H3N2 (1968), and H1N1 (2009), with virus diagrams illustrating genetic reassortment

There have been four influenza pandemics since the turn of the 20th century, occurring in 1918 (H1N1), 1957 (H2N2), 1968 (H3N2), and 2009 (H1N1). This timeline shows the temporal and genetic reassortment relationships among each of the pandemic influenza. Source: The evolution and future of influenza pandemic preparedness.

Molecular structure of lambda carrageenan highlighting three sulfate groups
our solution
our solution

Carragenix™ Antiviral Gel

Carragenix™ Antiviral Gel

Carragenix™ Antiviral Gel

Carragenix is a natural, antiviral gel formulated with Lambda Carrageenan (L-CRG) as its main active ingredient. L-CRG's unique structure, featuring three active sulfate groups, effectively inhibits viral attachment to healthy cells, providing a protective physical barrier against infection. Carragenix can be formulated to meet the specific needs of different markets based on where the gel should be applied.

Our in-vitro testing shows that Carragenix™ is effective across different mutations of influenza, showing promise that it may be able to eliminate the uncertainty caused by mutations. 

Carragenix™ is a natural, antiviral gel formulated with Lambda Carrageenan (L-CRG) as its main active ingredient. L-CRG's unique structure, featuring three active sulfate groups, effectively inhibits viral attachment to healthy cells, providing a protective barrier against infection. Carragenix can be formulated to meet the specific needs of different markets based on where the gel should be applied.

Our in-vitro testing shows that Carragenix is effective across different mutations of influenza, showing promise that it may be able to eliminate the uncertainty caused by mutations. 

Carragenix is a natural, antiviral gel formulated with Lambda Carrageenan (L-CRG) as its main active ingredient. L-CRG's unique structure, featuring three active sulfate groups, effectively inhibits viral attachment to healthy cells, providing a protective barrier against infection. Carragenix can be formulated to meet the specific needs of different markets based on where the gel should be applied.

Our in-vitro testing shows that Carragenix™ is effective across different mutations of influenza, showing promise that it may be able to eliminate the uncertainty caused by mutations. 

Carragenix™ is a natural, antiviral gel formulated with Lambda Carrageenan (L-CRG) as its main active ingredient. L-CRG's unique structure, featuring three active sulfate groups, effectively inhibits viral attachment to healthy cells, providing a protective barrier against infection. Carragenix™ can be formulated to meet the specific needs of different markets based on where the gel should be applied.

Our in-vitro testing shows that Carragenix™ is effective across different mutations of influenza, showing promise that it may be able to eliminate the uncertainty caused by mutations. 

Carragenix is a natural, antiviral gel formulated with Lambda Carrageenan (L-CRG) as its main active ingredient. L-CRG's unique structure, featuring three active sulfate groups, effectively inhibits viral attachment to healthy cells, providing a protective barrier against infection. Carragenix can be formulated to meet the specific needs of different markets based on where the gel should be applied.

Our in-vitro testing shows that Carragenix™ is effective across different mutations of influenza, showing promise that it may be able to eliminate the uncertainty caused by mutations. 

Carragenix™ is a natural, antiviral gel formulated with Lambda Carrageenan (L-CRG) as its main active ingredient. L-CRG's unique structure, featuring three active sulfate groups, effectively inhibits viral attachment to healthy cells, providing a protective barrier against infection. Carragenix™ can be formulated to meet the specific needs of different markets based on where the gel should be applied.

Our in-vitro testing shows that Carragenix™ is effective across different mutations of influenza, showing promise that it may be able to eliminate the uncertainty caused by mutations. 

Therapeutic Areas

Therapeutic Areas

Based on our research, Carragenix™ shows strong efficacy against the following categories of both enveloped and non-enveloped viruses

Women’s Health, STIs

Human Respiratory

Animal Respiratory

—— FAQ ——

—— FAQ ——

What is Lanvira?

Lanvira is a healthcare company developing preventative antiviral treatments for humans and animals leveraging Carragenix™ — a natural, proprietary compound from the red seaweed carrageenan. Clinical research to unlock physical barrier-forming properties against a broad spectrum of viruses has been conducted and backed by such institutions as the National Cancer Institute, Rutgers University, and McGill University.

What is Carragenix™?

Carragenix™ is Lanvira's antiviral gel formulated with a proprietary mix of carrageenan as its active ingredient. Sulfate groups on carrageenan molecules physically block viral attachment to healthy cells, creating a protective barrier before infection occurs. Carragenix™ can be formulated for different therapeutic applications ranging from human respiratory and STIs to animal diseases.

What is a preventative antiviral?

A preventative antiviral stops viral infection before it takes hold by blocking the virus at the point of cell entry. Unlike treatment antivirals — which are taken after infection begins — preventative antivirals create a barrier that stops the virus from attaching to and entering cells in the first place. Carragenix™ works through this preventative physical mechanism.

How is Carragenix™ different from antiviral drugs?

Most antiviral drugs work chemically by targeting a specific viral protein, making them effective against only one virus type and vulnerable to resistance as the virus mutates. Carragenix™ uses a physical mechanism — blocking viral attachment to cells — which is not virus-specific. This makes it effective across multiple virus types and resistant to becoming obsolete through viral mutation. Importantly, Carragenix™ acts on viruses, NOT on the host cells.

Which viral conditions does Carragenix™ target?

Carragenix™ shows strong efficacy across three therapeutic areas: women's health and sexually transmitted infections (STIs), human respiratory viruses including influenza, and animal respiratory viruses. In-vitro testing demonstrates effectiveness across multiple influenza mutations, suggesting potential broad-spectrum applicability. See our pipeline page for the current stage of development in each category.

Is Carragenix™ FDA approved?

Carragenix™ is currently in clinical development and has not yet received FDA approval as a medical treatment. However, its active ingredient — mixture of carrageenan — is classified as Generally Recognized as Safe (GRAS) by the FDA and is approved by the European Food Safety Authority (EFSA) for use in food products. See our science page for full safety information.

Contact us

info@lanvira.com

© 2025 Lanvira™. All rights reserved.

Contact us

info@lanvira.com

© 2025 Lanvira™. All rights reserved.

Contact us

info@lanvira.com

© 2025 Lanvira™. All rights reserved.