Parts Used: The dried thallus. It is a seaweed.

Active Compounds:  
Polysaccharides.
The extract, also known as carrageenin, consists of sulphated, straight chain galactans. There are two different types, a gelling fraction known as k-carrageenin and a non-gelling fraction known as l-carrageenin. They are both composed of o-galactose and 3,6-anhydrogalactose residues with a high proportion of sulphate esters.
Vitamin A and B.

Believed to be of value for:
Traditionally, Irish Moss believed to be beneficial in respiratory illness where it is often the core of prescriptions to treat irritating coughs, bronchitis and many other lung problems. It may be helpful in digestive conditions where a demulcent is called for, such as gastritis and ulceration of the stomach and duodenum. It may have soothing activity in inflammations of the urinary system. 

Other Names: Irish Moss, Carragheen, Carrageenan