Dry Extract Of Iceland Moss is a botanical material or multicomponent preparation rather than one structurally defined molecule. Dry extract of Iceland moss (Cetraria islandica), a lichen used traditionally as a demulcent for irritation of the mouth/throat and dry cough. Its composition can include numerous primary and secondary metabolites whose proportions vary with source material and processing.
Biological effects arise from the combined and sometimes interacting constituents of the material, so a single molecular mechanism cannot represent the whole preparation; activity varies with species, plant part, chemotype, extraction solvent, ratio, and manufacturing controls. Major applications include traditional or herbal products, research on constituent profiles and bioactivity, raw-material authentication, chromatographic fingerprinting, quality control, and regulatory safety assessment.
