The antiviral polymer from red seaweed

The polymer Carragelose® is a unique broadly active anti-viral compound for treating respiratory diseases. It has been approved for marketing in the EU, parts of Asia and Australia as part of nasal sprays, throat sprays and lozenges. Carragelose® is a sulfated polymer from red seaweed also widely used in the food industry and has GRAS status (FDA). The compound has a broad spectrum of anti-viral properties and is protected by a strong patent family.


Nasal Sprays

Throat Sprays


Mode of Action

A cold comes three days – stays three days – leaves three days. Colds are caused by more than 200 different respiratory viruses.

Like a burr to textiles, cold viruses bind to the surfaces of the upper respiratory tract. Then the infection starts. It is time to interfere!

Sprayed into the nose Carragelose® creates a protective layer in the nasal cavity that helps to reduce the spreading and proliferation of the common cold virus.

The clotted viruses leave the body via the natural route – the cold might not even come, stay shorter or leave faster. No virus – no cold – naturally achieved.

Safety and Efficacy

The safety and anti-viral effectiveness of Carragelose® have been established in several clinical and non-clinical trials. Three double-blind, placebo-controlled clinical trials confirmed the anti-viral effectiveness, a significant reduction of the duration of the disease, a significant reduction of viral load and a reduction of relapses.