Mountain Rose Herbs

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Irish Moss Powder

  • Chondrus crispus
  • Origin: Canada
Irish Moss Powder

Common Name

Standardized: Irish moss
Other: carrageen moss

Botanical Name

Chondrus crispus Stackh.
Plant Family: Gigartinaceae



Ireland moss is a tough and stringy red, yellow, or purple seaweed growing up to 6 inches (250 mm) high on rocks in tidal pools along the northern Atlantic. It is harvested to make carrageenan, a thickening agent for jellies, puddings, and soups, and is a traditional herbal remedy in Ireland.


Mucliages, carrageenan, bromine, iodine.

Parts Used

The entire seaweed, dried.

Typical Preparations

Traditionally used as a tea or tincture, sometimes encapsulated. May be taken as a capsule for convenience.


Don't use on a daily basis for more than 2 weeks at a time, taking a 2 week break before using again. This will prevent you from overdosing iodine with potential imbalance in thyroid function. For periodic use only and not to be taken for extended periods of time. Not to be used while pregnant. Material May contain shell fragments.

For educational purposes only This information has not been evaluated by the Food and Drug Administration.
This information is not intended to diagnose, treat, cure, or prevent any disease.