8 Best Sea Moss Supplements (2024) Reviewed and Compared

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If you’ve scrolled through TikTok recently (who hasn’t, the algorithm is magic), there’s a chance you’ve seen videos about a “superfood” called sea moss. It’s hard to avoid if even Kim K is endorsing it.

Proponents swear sea moss supports anti-aging, detox, skin health, a robust immune system, and healthy cholesterol levels. 

However, munching on moss doesn’t exactly sound enticing. So, we did a deep dive to see what all the buzz was about.

Today, we’ll cover the efficacy and safety of this trending wellness supplement. Plus, we’ll cover our picks for the 8 best sea moss supplements on the market.

What is Sea Moss?

Sea moss (Chondrus crispus) is edible algae, also known as Irish sea moss or Irish moss. It looks like frilly red or purple lettuce growing in tidal pools and on rocky outcrops along the British, European, and North American coastlines.

Sea moss is mainly harvested from a jelly-like substance called carrageenan, a vegan-friendly emulsifier, thickener, and binder. But it’s also in demand as a health supplement. Anecdotal evidence claims it promotes blood sugar balance, joint health, respiratory health, and heart health.

So, how much of this is true?

What Are the Health Benefits of Taking Sea Moss?

Like other sea veggies – like kelp and spirulinasea moss is a source of essential nutrients that may be missing from a Standard American Diet. This includes omega-3 fatty acids, iodine, magnesium, calcium, phosphorus, potassium, zinc, and vitamins A, B, and K. In fact, it contains all 92 minerals your body needs for overall health and well-being.

It’s a nutrient “insurance policy” of sorts. But, unlike synthetic mineral supplements, sea moss is a real food that’s easy to assimilate.

It’s especially rich in bioavailable iodine, a mineral crucial for thyroid health and a well-performing metabolism. Sea moss is worth exploring if you have a thyroid disorder, sluggish thyroid function, or low energy levels.

Let’s look at more of the health benefits of sea moss. Keep in mind the current research is sparse, and most of the data is from animal and lab studies.

May Support Gut Health

Seaweed is a source of digestion-resistant prebiotic fiber, which is “food” for the trillions of bacteria in your digestive system.

This rodent study found sea moss changed the gut microbiome composition for the better. It improved gut health and immune function.

We need clinical studies before we can take this as gospel – but it is promising, nonetheless.

May Improve Physical Performance

One of the few human studies on sea moss suggests it helps you get more out of your workout if you struggle with muscle pain, weakness, and fatigue.

However, those claiming it’s a performance-enhancing supplement are stretching the truth. It’s more likely to give you a boost by upping the nutrient density of your diet.

(Skip to the end of the article for more on the benefits of sea moss)

8 Best Sea Moss Supplements

Buying sea moss pills isn’t as easy as grabbing the first product that pops up on Google. Sea moss is susceptible to accumulating heavy metals and toxins from polluted ocean environments. In addition, the environment influences the nutrient density of the product. Buying high-quality sea moss is essential.

Here is our list of the 8 best sea moss products on the market. They are made according to current Good Manufacturing Practice (cGMP) standards and thoroughly tested for purity and safety.

*Note: We have affiliate links throughout this article, which means we receive a commission if you buy from any of our links. This supports our mission to bring complicated health and fitness info in an entertaining package. And it keeps us from putting up annoying things like banner ads. Those suck.

1) Codeage Wildcrafted Sea Moss

Codeage wildcrafted sea moss supplement

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Codeage Wildcrafted Sea Moss grabs the top spot because of its super formulation and rigorous safety standards.

It’s a blend of minerals and antioxidants from wildcrafted sea moss, bladderwrack, and burdock root.

Why wildcrafted?

Unlike sea moss grown in pools or algae farms, wildcrafted sea moss grows in a nutrient-dense ocean environment. Wild Irish moss is sustainably grown and sourced.

Each 2-capsule serving contains:

  • 500 mg of wildcrafted Irish sea moss powder
  • 500 mg of wildcrafted bladderwrack powder
  • 400 mg of burdock root powder
  • 100 mg of pure spirulina powder

The sea moss bladderwrack combo works synergistically to support thyroid function, healthy skin, and energy levels.

It’s blended with BioPerine®, a black pepper extract that enhances nutrient bioavailability. The capsules contain peppermint oil, so any sea-weedy aftertaste is covered up. It’s non-GMO, keto-friendly, and free from gluten, dairy, soy, fillers, and other nasties.

Codeage makes products in the US in a cGMP-certified facility. Each batch is third-party tested for identity, purity, and potency.

A 2-month supply sells for $33.99. They also offer a 30-day money-back guarantee. We’re pretty sure you won’t need it, but it’s nice to have.

You can see why Codeage Organic Sea Moss Capsules are #1 on our list.

2) Double Wood Irish Sea Moss Capsules

Double Wood Irish Moss Extract

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Double Wood Irish Moss Extract comes in a potent 10:1 extract ratio (it takes 10 grams of pure sea moss to make 1 gram of sea moss powder).

Each serving offers 1200 mg of pure Irish sea moss per serving. Plus, the capsules are vegan-friendly and soy, gluten, and GMO-free.

A bottle of 180 capsules is just $19.95. It’s the best value for money on the list!

Double Wood makes products in the US according to cGMP regulations. For peace of mind, you can view the Certificates of Analysis and Third-Party Test Results on their website.

3) Peak Performance Organic Irish Sea Moss Capsules

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Peak Performance is a US-based company that manufactures supplements according to strict cGMP regulations.

A 2-capsule serving of their Wild Irish Sea Moss delivers a potent 1200 mg dose. It is vegan-friendly and free from GMOs, soy, milk, egg, shellfish, corn, preservatives, and gluten.

A bottle costs just $18.95. But if you buy in packs of 3 or 5, you get a 10% and 20% discount. They also have a 30-day money-back guarantee. There’s nothing to lose.

4) Maju Purple Sea Moss Capsules

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Maju Purple Sea Moss comes from wildcrafted Chondrus Crispus ethically harvested from the Atlantic Ocean off the coast of Canada.

Each capsule provides 500 mg of pure sea moss. A bottle of 60 costs $24.99.

5) Force Factor Sea Moss Chews

Force Factor Sea Moss

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Force Factor has created a truly genius sea moss soft chew in salted caramel flavor. And, according to the reviews, it’s actually tasty.

One salty and sweet chew contains 250 mg of sea moss.

It’s kosher, vegetarian, non-GMO, and free from artificial colors, flavors, or sweeteners. However, it contains tapioca syrup and raw cane sugar, which you may want to steer clear of if you’re diabetic (or living a keto lifestyle).

Force Factor uses cGMP-compliant facilities that are FDA-registered and accredited by a third-party certification agency.

6) Viva-Nutra Regeneration Organic Irish Sea Moss Capsules

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VivaNutra Regeneration is a cGMP-certified and third-party-tested microalgae blend sourced from the Atlantic Ocean.

A 2-capsule serving provides:

  • 776 mg of organic Irish Moss
  • 660 mg of organic Bladderwrack
  • 50 mg of organic Burdock Root

A two-month supply costs $39.95. But you can get a discount with viva-nutra remedies if you buy bundles of 2, 4, or 6 bottles.

7) Elm & Rye Sea Moss Capsules and Gummies

best sea moss supplement


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Elm & Rye Sea Moss is made using the finest wildcrafted sea moss sustainably cultivated from the Atlantic Ocean. Plus, they come in capsules and gummies!

One gummy delivers 300 mg of sea moss. However, it contains glucose syrup and artificial flavoring and coloring. 

The capsules provide 250 mg of sea moss per serving. They’re free from fillers and additives but are not vegan-friendly.

8) Organics Nature Sea Moss Gel

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Organics Nature Wildcrafted Sea Moss Gel comes from the unpolluted waters of St. Lucia – home of the purest sea moss. It’s gluten-free, non-GMO, and free from heavy metals and contaminants.

The gel is pretty flavorless; you can add a tablespoon or two to smoothies, juices, coffee, tea, or stews. Plus, sea moss gel may soothe and heal skin issues when used topically.

Unfortunately, sea moss gel must be stored in the fridge and only lasts up to 4 weeks once opened. If you’re looking for something with a longer shelf life, capsules may be more your vibe.

How We Ranked

We ranked these supplements, but we want you to decide on the best product for your needs.

Here are some factors we considered when researching the best sea moss supplement.

Strict Testing Standards

The FDA doesn’t regulate the supplement industry. This makes it easy for dodgy companies to make false claims on their product labels.

The growing demand for sea moss makes it susceptible to unscrupulous companies flooding the market with tainted products to make a quick buck.

For this reason, we prioritize trusted companies that source ingredients responsibly and safely. They adhere to cGMP regulations and use third-party testing. Many companies also provide test results online.

Buying from our list ensures you’re getting high-quality natural sea moss.

Ingredients and Purity

By nature, sea moss is at risk of contamination by heavy metals, pollutants, and toxins. You need a product grown under the strictest conditions.

We looked for products using wildcrafted Irish sea moss from sustainable sources (rather than pool-grown). We also prioritized organic sea moss free from junk fillers and additives.

Plus, we boosted supplements with other ingredients for added health benefits. This is the case with Codeage Wildcrafted Sea Moss.


The supplements on the list offer 250–1200 mg of sea moss per serving. Some people prefer starting with a lower dose and building up.


We listed sea moss capsules, chews, gummies, and gel so you can pick what works best for you.


Supplementing with high-quality sea moss shouldn’t put you out of pocket.

We weighed the cost against the number of servings, the dose, and the quality to find the best value for money.


Does Sea Moss Promote Weight Loss?

Plenty of anecdotal evidence claims sea moss contributes to weight loss by enhancing thyroid function. So far, it’s purely speculative.

That said, marine algae may contain compounds with anti-obesity properties. However, the weight loss benefits of sea moss aren’t backed by human studies yet.

Can Sea Moss Help to Reduce Cancer Risk?

Sea moss is a good source of antioxidants (these guys fight free radicals and protect your cells from oxidative damage). Preclinical research suggests one of these antioxidants, fucoxanthin, may inhibit colorectal cancer.

However, human trials haven’t studied sea moss as an anticancer supplement. I’m hopeful we’ll see more research in this area soon.

What Is the Best Form of Sea Moss to Take?

Various seaweeds, microalgae, and macroalgae are lumped together as sea moss. 

However, Irish sea moss from the Chondrus crispus species of red algae is the most reputable form.

How Much Sea Moss Should I Take?

Sea moss isn’t FDA-regulated, so we don’t have an official recommended dose. Most product labels suggest taking between 500-1200 mg daily.

Does Sea Moss Have Side Effects?

Consuming up to 4 grams of sea moss daily appears to be safe for most people (if you invest in a reputable supplement).

However, there is a risk of consuming excess iodine from sea moss, which can become toxic. In addition, some people experience mild digestive discomfort from the carrageenan in sea moss.

We need more research on the best dosage and the potential side effects of sea moss supplements. As always, speak to your doctor before taking a new dietary supplement.

About the Author

Katherine is a South African-born nutritionist, freelance wellness writer, and rooibos tea enthusiast (iykyk). When she's not researching new "biohacking" trends and writing for her clients, you'll find Katherine swimming at a local Cape Town beach or practicing breathwork at any opportunity.

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