Betadine Cold Defence Nasal Spray is a natural nasal spray containing Carragelose that helps shorten the duration of virus-related cold symptoms. It creates a protective barrier in the nasal passages to help prevent and treat cold symptoms. The 20ml nasal spray contains natural Carragelose as its active ingredient, which forms a protective film on the nasal mucosa. This helps trap and inactivate cold viruses early, potentially reducing the severity and duration of cold symptoms. The spray is designed for nasal application to provide targeted relief.