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Sea Moss: Raw, Capsules and Powder

Sea moss is a common name for red seaweeds, and Irish sea moss usually refers to Chondrus crispus. Products come as raw dried seaweed, capsules and powder. They are sold as dietary supplements or foods, so the label and the seller's testing information matter more than the marketing.

Herbal SupplementsFunctional MushroomsHerbal Teas & BotanicalsNatural Skincare & Body Care

What to check before you buy

  • Botanical name on the label (for example Chondrus crispus), not only "sea moss"
  • Iodine amount per serving, because seaweed iodine varies widely
  • A lab report that names the product and batch
  • Serving size and servings per container, so you can compare cost per serving
  • Whether you are pregnant, breastfeeding, have a thyroid condition or take medication, in which case ask a clinician first

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.

Sea Moss products

Products from our first retail partner. Prices appear only where we verified them. We have not tested these products ourselves.

Raw Purple & Gold Sea Moss 4 oz (Chondrus Crispus, Irish Sea Moss), product photo from Alkaline Herb Shop
Alkaline Herb Shop

Raw Purple & Gold Sea Moss 4 oz (Chondrus Crispus, Irish Sea Moss)

Whole dried Chondrus crispus in a purple and gold mix. You rinse, soak and blend it into gel yourself. The retailer says this bag is from Canada.

  • Format: Raw (dried) sea moss
  • Size: 4 oz bag
  • Category: Sea Moss
  • Price: $29.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize
Read our product guide

Related: How to make gel · Compare colors

Check price at Alkaline Herb Shop
Raw Gold Sea Moss 4 oz (Chondrus Crispus, Irish Sea Moss), product photo from Alkaline Herb Shop
Alkaline Herb Shop

Raw Gold Sea Moss 4 oz (Chondrus Crispus, Irish Sea Moss)

Raw gold Chondrus crispus, sold dried by the ounce for home gel making. Colour varies by growing conditions rather than species, according to the retailer.

  • Format: Raw (dried) sea moss
  • Size: 4 oz bag
  • Category: Sea Moss
  • Price: $33.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: How to make gel · Compare colors

Check price at Alkaline Herb Shop
Raw Red Sea Moss 4 oz (Chondrus Crispus, Irish Sea Moss), product photo from Alkaline Herb Shop
Alkaline Herb Shop

Raw Red Sea Moss 4 oz (Chondrus Crispus, Irish Sea Moss)

Raw red Chondrus crispus in a 4 oz bag. Same named species as the retailer's gold and purple options, sold dried for gel making at home.

  • Format: Raw (dried) sea moss
  • Size: 4 oz bag
  • Category: Sea Moss
  • Price: $28.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: How to make gel · Compare colors

Check price at Alkaline Herb Shop
Sea Moss & Bladderwrack Supplement 200 Capsules, product photo from Alkaline Herb Shop
Alkaline Herb Shop Lowest cost per serving (capsules)

Sea Moss & Bladderwrack Supplement 200 Capsules

Capsules that pair Irish sea moss with bladderwrack, 900 mg of each in the three-capsule serving the retailer lists. High in iodine by the retailer's own numbers.

  • Format: Capsules
  • Size: 200 vegetable capsules
  • Category: Sea Moss
  • Price: $49.99 (checked November 3, 2026)
  • Lab evidence: Merchant states third-party testing. CannaWize has not reviewed the results.
Read our product guide

Related: Compare sea moss capsules

Check price at Alkaline Herb Shop
Sea Moss & Bladderwrack 90 Capsules, product photo from Alkaline Herb Shop
Alkaline Herb Shop

Sea Moss & Bladderwrack 90 Capsules

A smaller 90-capsule bottle that combines sea moss and bladderwrack. Check the label for the amount of each seaweed and the iodine per serving before comparing it with the 200-count size.

  • Format: Capsules
  • Size: 90 capsules
  • Category: Sea Moss
  • Price: $29.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: Compare sea moss capsules

Check price at Alkaline Herb Shop
Sea Moss Supplement 140 Capsules, product photo from Alkaline Herb Shop
Alkaline Herb Shop Single-ingredient capsule

Sea Moss Supplement 140 Capsules

Single-ingredient sea moss capsules, 140 per bottle. A simpler label than the combination products, which can make serving comparisons easier.

  • Format: Capsules
  • Size: 140 capsules
  • Category: Sea Moss
  • Price: $41.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: Compare sea moss capsules

Check price at Alkaline Herb Shop
Sea Moss & Elderberry Supplement 90 Capsules, product photo from Alkaline Herb Shop
Alkaline Herb Shop Lowest printed iodine (capsules)

Sea Moss & Elderberry Supplement 90 Capsules

Sea moss paired with elderberry in a 90-capsule bottle. Combination products make it harder to see how much of each ingredient you get, so read the supplement facts panel.

  • Format: Capsules
  • Size: 90 capsules
  • Category: Sea Moss
  • Price: $29.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: Compare sea moss capsules

Check price at Alkaline Herb Shop
Sea Moss & Moringa Supplement 90 Capsules, product photo from Alkaline Herb Shop
Alkaline Herb Shop

Sea Moss & Moringa Supplement 90 Capsules

Sea moss and moringa together in a 90-capsule bottle. Look for the amount of each ingredient per serving on the supplement facts panel.

  • Format: Capsules
  • Size: 90 capsules
  • Category: Sea Moss
  • Price: $29.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: Compare sea moss capsules

Check price at Alkaline Herb Shop
Irish Sea Moss Powder 4 oz (Musgo Marino, Chondrus Crispus), product photo from Alkaline Herb Shop
Alkaline Herb Shop

Irish Sea Moss Powder 4 oz (Musgo Marino, Chondrus Crispus)

Chondrus crispus ground to a powder, 4 oz. Powder skips the soaking step, but dosing is by the spoonful, so check the stated serving size.

  • Format: Powder
  • Size: 4 oz
  • Category: Sea Moss
  • Price: $24.99 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: Gel vs capsules vs raw

Check price at Alkaline Herb Shop
Sea Moss Best Sellers Bundle - Sea Moss, Burdock Root & Bladderwrack Supplement, Sea Moss & Elderberry Supplement, and Sea Moss & Moringa Supplement, product photo from Alkaline Herb Shop
Alkaline Herb Shop

Sea Moss Best Sellers Bundle - Sea Moss, Burdock Root & Bladderwrack Supplement, Sea Moss & Elderberry Supplement, and Sea Moss & Moringa Supplement

Three capsule products bundled together: sea moss with burdock root and bladderwrack, sea moss with elderberry, and sea moss with moringa. Compare each label before combining them.

  • Format: Bundle
  • Size: 3 products
  • Category: Sea Moss
  • Price: $70.48 (checked November 3, 2026)
  • Lab evidence: Lab results not reviewed by CannaWize

Related: Moringa formats compared

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.

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Frequently asked questions

What should I look for when buying sea moss?

The botanical name, the format and size, the iodine per serving, and a lab report that matches your lot. Our guides explain each: what sea moss is, how to read a lab report and how much iodine is too much.

Which sea moss format should I choose?

That depends on whether you want a measured serving or a cooking ingredient. See gel vs capsules vs raw for a side-by-side comparison. No source we reviewed shows one format is medically better.

Have you tested these sea moss products?

No. CannaWize has not tested any product. Lab-evidence status on each card shows what the retailer states and what we have or have not reviewed.

Is the retailer's testing verified?

We read one published lab summary and found gaps, described on the Alkaline Herb Shop profile. A testing claim is not the same as a published full report.

Related guides

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How to Buy Sea Moss Online: Species, Testing, Price and Quality

A practical checklist for buying sea moss online, including species, format, iodine, batch testing, price comparisons, storage and retailer transparency.

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What Is Sea Moss? Types, Nutrition, and What Research Actually Says

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How to Make Sea Moss Gel at Home: Method, Storage and Safety Notes

A step-by-step sea moss gel method from raw Chondrus crispus, where the seller's own instructions disagree, cold-storage rules and iodine cautions.

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Sea Moss Gel vs Capsules vs Raw Sea Moss: Which Format Makes Sense?

Compare raw sea moss, gel, powder and capsules on preparation, storage, label transparency and cost per serving, with verified examples and no format hype.

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Best Sea Moss Capsules: Five Labels Compared by Cost, Ingredients and Iodine

Five sea moss capsule labels compared on cost per serving, seaweed per serving and printed iodine, with NIH iodine limits and a short buying checklist.

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Purple vs Gold vs Red Sea Moss: Does Color Matter?

Purple, gold and red sea moss are listed as one species. Compare origin and price for three raw bags, and see what research does and does not say about color.

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Sea Moss and Iodine: How Much Is Too Much?

Sea moss iodine content explained: NIH intake and upper limits, why seaweed iodine varies, who should ask a clinician first, and a label checklist.

9 min readSafety & Interactions

Sea Moss Side Effects and Who Should Avoid It

What NIH sources say about sea moss risks: iodine and the thyroid, contaminants, medicine interactions, pregnancy, and who should ask a clinician first.

7 min readProduct Testing & Safety

How to Read a Sea Moss Lab Report Before Buying

Sea moss lab testing explained: what a COA shows, how to match a report to your batch, and how to read heavy metal, microbial and iodine results.

8 min readHerbal Ingredients

Sea Moss and Bladderwrack: Ingredients, Differences, and What to Check

How sea moss (Chondrus crispus) and bladderwrack (Fucus vesiculosus) differ, why they are combined, iodine considerations, and what to check on a capsule label.

7 min read

About our retail partner, Alkaline Herb Shop →