Full Spectrum Irish Moss

$15.09 $4.53

Free Shipping

Free Returns

Swanson Irish Moss is a plant-based source of free-radical-fighting antioxidants that support immune health and thyroid function. Irish moss is a type of sea moss, also known as red seaweed, a source of carrageenan that helps promote overall well-being. It can also support healthy hair and skin and promote healthy aging. Each serving delivers 400 mg of Irish moss in convenient capsule form so you get all of the benefits without any of the taste.


Supplement Facts

Serving Size 1 Capsule

Servings Per Container 60

Amount Per Serving % Daily Value
Irish Moss (Chondrus crispus) (dried whole plant) 400 mg *

*Daily Value not established.

Other Ingredients: Gelatin, rice flour, magnesium stearate, silica.

Suggested Use: As a dietary supplement, take one capsule one to two times per day with water.

Warning: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.

Storage Instructions: Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.

CA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov




  1. Is Irish moss a moss or a seaweed?
    Despite its name, Irish moss is not a true moss. It is a species of red seaweed (Chondrus crispus) that grows along the rocky Atlantic coastlines of Europe and North America. As a marine plant, it naturally provides minerals, sulfated polysaccharides, and other beneficial phytonutrients.
  2. What are the benefits of Irish moss?
    Irish moss is valued for its naturally occurring minerals, soluble fiber, and sulfated polysaccharides. Together, these nutrients help support digestive health, healthy thyroid function, antioxidant defenses, and overall wellness.
  3. How does Irish moss support digestive health?
    Irish moss contains soluble fiber and sulfated polysaccharides, including carrageenans, that form a soothing gel when hydrated. These compounds help support normal digestive function, promote a healthy intestinal environment, and contribute to regular bowel function.
  4. How does Irish moss support thyroid health?
    Irish moss naturally contains iodine, an essential trace mineral required for the production of thyroid hormones. Adequate iodine intake helps support normal thyroid function and healthy metabolism as part of a balanced diet. Excess iodine intake may not be appropriate for everyone, so individuals with thyroid conditions should consult a healthcare provider before use.
  5. What makes Swanson Full Spectrum Irish Moss unique?
    Swanson Full Spectrum Irish Moss delivers 400 mg of whole Irish moss (Chondrus crispus) in every capsule, preserving the seaweed's naturally occurring minerals, sulfated polysaccharides, and other marine phytonutrients. Unlike highly processed extracts, this Full Spectrum formula provides the whole sea vegetable in its natural nutritional balance.
  6. Is Swanson Full Spectrum Irish Moss suitable for special diets?
    Swanson Full Spectrum Irish Moss is made with non-GMO ingredients and is formulated without gluten or dairy. It is not suitable for vegan or vegetarian lifestyles because it contains a gelatin capsule, which is animal-derived. Individuals following plant-based diets should review the ingredient list before use.