Iceland Moss

Scientific Summary

Iceland moss (Cetraria islandica) is a foliose lichen that grows on rocks and soil in cold, northern regions. It is traditionally used as a demulcent to soothe cough and throat irritation, as a bitter tonic, and to mask the taste of unpleasant medicines. Consumers should use only products sourced from uncontaminated sites, keep the dose within the recommended range, and avoid use during pregnancy, nursing, or if you have liver disease.

Source: Trease & Evans Pharmacognosy 16th ed