Parts Used: The whole plant.

Active Compounds:
Phenolic compounds, phloroglucinol, its dehydropolymerization products the fucols, the fucophorethols, phlorotannin derivatives.
Mucopolysaccharides, algin.
Sulphuryl-, sulphonyl- and phosphonyl-glycosyl ester diglycerides.
Polar lipids
Trace minerals, particularly iodine.

Believed to be of value for:
Bladderwrack has a reputation in helping the relief of rheumatism and rheumatoid arthritis, both used internally and as an external application upon inflamed joints.

Other Names: Kelp, Seawrack, Kelpware, Black-tang, Bladder Fucus, Cutweed, bladderwrack, sea weed, sea oak, black tany, cutweed