On August 10, OnlinePharm, a subsidiary of Hanmi Science, announced that it will supply 'Cold Mask,' a medical device designed to help prevent respiratory viral infections, to pharmacies nationwide.


Cold Mask product photo. Hanmi Group

Cold Mask product photo. Hanmi Group

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Cold Mask is a spray-type product administered intranasally. According to the company, it is the only nasal spray containing lambda-carrageenan, available in pharmacies.


Lambda-carrageenan is a high-molecular-weight substance derived from seaweed. When sprayed, it forms a protective layer on the surface of the nasal mucosa, blocking external respiratory viruses from penetrating or adhering to the mucous membrane and thereby protecting it. As a result of this mechanism, Cold Mask is classified as a medical device. It can be applied directly to the nose without additional preparation, and the recommended usage is three times a day during normal conditions. If infection is suspected or present, the frequency of use can be increased as needed. The product’s packaging prominently features phrases such as "Prevention of respiratory viral infection" and "Protection of nasal mucosa."


An OnlinePharm representative stated, "Cold Mask is a new-concept medical device that creates a physical barrier on the nasal mucosa to defend against the invasion of respiratory viruses. With its convenient spray application and the inclusion of lambda-carrageenan, this differentiated product characteristic will offer consumers a new option."



Meanwhile, OnlinePharm, as a subsidiary of Hanmi Science, is responsible for the distribution of Hanmi Pharmaceutical’s medicines and healthcare products. Cold Mask is supplied to pharmacies nationwide through OnlinePharm, and it is a medical device that can be purchased without a prescription.


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