Link Samahan - the 100% authentic herbal formulation which is clinically proven (Ceylon Medical Journal - 2012; 57: 19-32), safe and effective preparation for relief of cold and catarrh related symptoms. Extensive clinical trials have confirmed that regular use helps to prevent 15 common symptoms related to upper respiratory complications. It has continued to dominate the market over 22 years, as the first-choice of Over-The-Counter preparations for instant cold remedy.