- Retailer: Alkaline Herb Shop
- Format: Raw (dried) sea moss
- Size: 4 oz bag
- Price: $29.99 on November 3, 2026 (may change)
- Lab evidence: Lab results not reviewed by CannaWize
This is a 4 oz bag of whole dried sea moss that the retailer identifies as Chondrus crispus, sold as a mix of purple and gold fronds. It is a raw ingredient, not a finished supplement: you soak it and usually blend it into gel. This guide sticks to what the retailer's listing says, what that does and does not establish, and what to confirm before you order.
What the listing says
- Species: Chondrus crispus, also called Irish sea moss.
- Form and size: whole dried sea moss, 4 oz per bag.
- Origin: the retailer says this bag is from Canada, and that its raw range is sourced from several regions depending on the season, with the country printed on the bag.
- Harvest and drying: described as wildcrafted from natural sea beds, dried for 3 to 7 days, and packed without preservatives or additives.
- Color: the retailer says purple, gold and red sea moss are the same species and that color reflects pigments the plant produces in response to light. It makes no claim that one color is better.
- Preparation: the retailer's method starts with 2 oz of raw moss and 2 cups of spring water, so a 4 oz bag makes two batches.
- Storage: keep dry sea moss tightly closed in a dry place at room temperature. The retailer says gel goes in the refrigerator.
Those are the seller's statements. CannaWize has not tested this product and has not verified the origin or harvest claims.
What the label does and does not establish
A species name and a country of origin help, because seaweed composition varies by species and by place. They do not tell you how much iodine or how many contaminants this particular bag contains. The NIH Office of Dietary Supplements reports whole and sheet seaweeds ranging from 16 to 2,984 micrograms of iodine per gram, and LactMed notes that sea moss can contain arsenic, lead, cadmium and mercury from the water where it grew. The listing we reviewed does not state iodine per gram, and we did not find a lab report specific to this product on the page.
Safety considerations
The retailer itself lists precautions: sea moss is naturally high in iodine, people with a thyroid condition should speak to a physician first, it is not for use during pregnancy or nursing, and people under 18 or with known medical conditions should consult a physician. Those precautions line up with NIH and LactMed guidance. See our iodine guide for the official intake numbers.
Price and value
The retailer listed this bag at $29.99 when we checked on October 28, 2026. Because the listing does not define a gel serving, we cannot give a reliable cost per serving. The retailer's method implies about $15 per batch of gel, but batch yield and how much you eat from it are up to you.
What to check before you buy
- Confirm the current price, size and country of origin on the retailer's page.
- Ask for a lab report that matches the lot you will receive, including heavy metals and iodine. Our lab report guide explains what to look for.
- Decide whether you want to make gel. If not, a measured format may suit you better.
- Check your own circumstances with a clinician if you have thyroid disease, are pregnant or breastfeeding, or take medication.
Alternatives
The retailer also lists raw gold and raw red sea moss in the same size, and powder and capsule formats. Our format comparison walks through when each one makes sense, and the sea moss category lists the options we have reviewed.
Frequently asked questions
Is purple sea moss different from gold sea moss?
The retailer says purple, gold and red are the same species, Chondrus crispus, and that color reflects growing conditions. It does not claim one color is better.
How much gel does a 4 oz bag make?
The retailer's method uses 2 oz of raw moss per batch, so a 4 oz bag makes two batches. The listing does not define a gel serving.
Is this sea moss safe to eat daily?
That depends on its iodine and contaminant content, which the listing does not state, and on your health. The retailer itself advises people with a thyroid condition, who are pregnant or nursing, or who have medical conditions to consult a physician first.
Where is this sea moss from?
The retailer says this bag is from Canada. We have not verified origin claims.
Where to buy
CannaWize does not sell this product. Use the retailer's page to confirm the current price, size, ingredient panel and lab documentation before you order.
Check price at Alkaline Herb Shop
Affiliate disclosure: CannaWize may earn a commission if you buy through links on this page, at no extra cost to you. CannaWize does not sell these products. You complete your purchase on the retailer's website, and the retailer handles pricing, shipping and returns.
Sources
Health information: This page is educational and is not medical advice. Dietary supplements are not approved by the FDA to diagnose, treat, cure or prevent any disease. Talk with a doctor or pharmacist before starting a supplement, especially if you are pregnant, breastfeeding, have a thyroid condition, take medication, or have surgery planned.