Supplement Review · Updated October 2026

Best Sea Moss Supplements 2026: Top 5 Ranked.

We compare five sea moss capsules on what each label lists: the botanicals inside, the amount of each, and how the brand describes its testing. Here are the five, side by side.
What to Look For Compare Top 5 See the #1 Pick →
Five sea moss supplements compared by label
EDITOR'S PICKS 2026
What It Is

What is sea moss?

Sea moss (Irish moss, Chondrus crispus) is a red seaweed that has long been eaten as a food. Like other seaweeds, it takes up minerals, iodine included, from the water it grows in. It can take up metals from that water too, which is why testing matters.

Who It's For

Who takes sea moss?

Thyroid and iodine

Iodine is part of normal thyroid function. Irish moss and bladderwrack are both iodine-rich seaweeds. If you have a thyroid condition, or you take thyroid medication, talk with your healthcare provider first.

Digestive and gut health

Seamoss+ pairs two seaweeds with burdock root, a root long used in traditional food and herbal practice, and is formulated to promote digestive and gut health.

Immune support

Some people add sea moss to a daily wellness routine. Seamoss+ may support immune system health as part of that routine.

Switching from gel

Sea moss gel is a fresh food that needs the fridge, and a spoonful varies in amount. A capsule gives a set amount per serving that you can read on the label.

What to Look For

Three things to check on the label.

01/03

Full trio

Many sea moss capsules pair Irish moss with bladderwrack and burdock root. Check that each one is listed with its own amount.

Seamoss+: 500 mg Irish moss, 500 mg bladderwrack, 400 mg burdock
02/03

Absorption support

Some formulas add black pepper extract (piperine) to support nutrient absorption. Check whether it is listed and how much.

BioPerine 5mg
03/03

Outside testing

Seaweed takes up what is in the water around it, which can include metals. Look for a brand that has an outside lab test its product and says how often. Seamoss+ is third-party tested, every batch, for purity and potency.

Third-party lab · Every batch
Gel, raw, or capsule?

Raw moss and gel are the whole food, and the amount in a spoonful varies. A capsule lists a set amount per serving, can add other ingredients, and is easier to store.

Head-to-Head

How the Top 5 compare.

Compare two formulas

Compare Seamoss+ with
Our formula
CuraMyHealth Seamoss+

CuraMyHealth Seamoss+

Compare with
Maju Wild Sea Moss 4-in-1 Extra Strength

Maju Wild Sea Moss 4-in-1 Extra Strength

Criteria Met
3 of 3
1 of 3
Dose per serving
500 mg Irish moss + 500 mg bladderwrack + 400 mg burdock + 5 mg BioPerine / 2 capsules
300 mg sea moss + 100 mg burdock + 100 mg bladderwrack + 2.5 mg black pepper / capsule
Verified purity (COA)
✓
✓
Single Ingredient
✕
✕
Manufactured in the USA
✓
✓
3rd Party Tested
✓
✕
Score
9.5
8.9
Our formula
CuraMyHealth Seamoss+

CuraMyHealth Seamoss+

Compare with
Double Wood Sea Moss

Double Wood Sea Moss

Criteria Met
3 of 3
1 of 3
Dose per serving
500 mg Irish moss + 500 mg bladderwrack + 400 mg burdock + 5 mg BioPerine / 2 capsules
1200 mg sea moss extract / 2 capsules
Verified purity (COA)
✓
✓
Single Ingredient
✕
✓
Manufactured in the USA
✓
✓
3rd Party Tested
✓
✓
Score
9.5
8.6
Our formula
CuraMyHealth Seamoss+

CuraMyHealth Seamoss+

Compare with
Infinite Age Sea Moss Advanced

Infinite Age Sea Moss Advanced

Criteria Met
3 of 3
1 of 3
Dose per serving
500 mg Irish moss + 500 mg bladderwrack + 400 mg burdock + 5 mg BioPerine / 2 capsules
500 mg Irish moss + 500 mg bladderwrack extract + 250 mg burdock extract / 2 capsules
Verified purity (COA)
✓
?
Single Ingredient
✕
✕
Manufactured in the USA
✓
✓
3rd Party Tested
✓
✓
Score
9.5
8.3
Our formula
CuraMyHealth Seamoss+

CuraMyHealth Seamoss+

Compare with
Clean Nutra MultiMineral

Clean Nutra MultiMineral

Criteria Met
3 of 3
0 of 3
Dose per serving
500 mg Irish moss + 500 mg bladderwrack + 400 mg burdock + 5 mg BioPerine / 2 capsules
300 mg sea moss extract + 200 mg black cumin + 100 mg each ashwagandha and burdock / 2 capsules
Verified purity (COA)
✓
?
Single Ingredient
✕
✕
Manufactured in the USA
✓
✕
3rd Party Tested
✓
✓
Score
9.5
8.0
✓ Yes✕ No? Unknown
#1 PickCuraMyHealth Seamoss+ #2Maju Wild Sea Moss 4-in-1 Extra Strength #3Double Wood Sea Moss #4Infinite Age Sea Moss Advanced #5Clean Nutra MultiMineral
Criteria CuraMyHealth Maju Wild Sea Moss 4-in-1 Extra Strength Double Wood Sea Moss Infinite Age Sea Moss Advanced Clean Nutra MultiMineral
Criteria Met 3 of 3 1 of 3 1 of 3 1 of 3 0 of 3
Dose per serving 500 mg Irish moss + 500 mg bladderwrack + 400 mg burdock + 5 mg BioPerine / 2 capsules 300 mg sea moss + 100 mg burdock + 100 mg bladderwrack + 2.5 mg black pepper / capsule 1200 mg sea moss extract / 2 capsules 500 mg Irish moss + 500 mg bladderwrack extract + 250 mg burdock extract / 2 capsules 300 mg sea moss extract + 200 mg black cumin + 100 mg each ashwagandha and burdock / 2 capsules
Verified purity (COA) ✓ ✓ ✓ ? ?
Single Ingredient ✕ ✕ ✓ ✕ ✕
Manufactured in the USA ✓ ✓ ✓ ✓ ✕
3rd Party Tested ✓ ✕ ✓ ✓ ✓
Score 9.5 8.9 8.6 8.3 8.0
Swipe to compare
Results

Top 5 sea moss supplements, ranked.

FEATURED FORMULA
CuraMyHealth Seamoss+
Best Overall

CuraMyHealth Seamoss+

Irish Moss · Bladderwrack · Burdock · BioPerine · 60 Capsules

3/3 Criteria Full Trio BioPerine Organic ingredients on the label 3rd PARTY TESTED
9.5
Our Rating
Strengths06
  • Three botanicals and BioPerine, each listed with its own amount.
  • Per 2-capsule serving: 500 mg Irish moss, 500 mg bladderwrack, 400 mg burdock root.
  • 5 mg BioPerine black pepper extract, added for absorption.
  • Third-party tested, every batch, for purity and potency.
  • Supplement Facts list organic Irish moss, bladderwrack and burdock; no proprietary blend.
  • Manufactured in USA with globally sourced materials, in a GMP-certified facility.
Bottom Line No proprietary blend here: every ingredient has its own amount. Seamoss+ pairs 500 mg Irish moss and 500 mg bladderwrack with 400 mg burdock root and 5 mg BioPerine, in two capsules a day. Irish moss and bladderwrack are both iodine-rich seaweeds. If you have a thyroid condition, or you take thyroid medication, talk with your healthcare provider before starting. Third-party tested, every batch, with a 60-day money-back guarantee.
Check Availability 60-day money-back guarantee
Also Reviewed · Ranks 02 to 05
Maju Wild Sea Moss 4-in-1 Extra Strength
Rank 02

Maju Wild Sea Moss 4-in-1 Extra Strength

Sea moss, bladderwrack, burdock and black pepper · Capsule
8.9
Score
Why consider it
  • Combines Irish sea moss, bladderwrack, burdock root and black pepper; the brand suggests 2 capsules daily.
What to weigh
  • The brand's product page lists the four ingredients but not their amounts.
View product information →
Double Wood Sea Moss
Rank 03

Double Wood Sea Moss

Irish sea moss extract only · 2-capsule serving
8.6
Score
Why consider it
  • Lists 1,200 mg Irish sea moss extract (10:1) per 2-capsule serving; the brand posts lot test results, including heavy metals.
Infinite Age Sea Moss Advanced
Rank 04

Infinite Age Sea Moss Advanced

Irish moss, bladderwrack and burdock · 2-capsule serving
8.3
Score
Why consider it
  • Lists 500 mg Irish moss, 500 mg bladderwrack extract (10:1) and 250 mg burdock extract (10:1) per 2-capsule serving.
What to weigh
  • Does not list black pepper extract.
Clean Nutra MultiMineral
Rank 05

Clean Nutra MultiMineral

15 ingredients · 2-capsule serving
8.0
Score
Why consider it
  • Lists 300 mg sea moss extract, 100 mg bladderwrack and 100 mg burdock among 15 ingredients per 2-capsule serving, plus vitamins C and D.
What to weigh
  • Part of the formula is a 350 mg proprietary blend; the capsule is bovine gelatin.
How to Take

How to take Seamoss+.

Step 01

Take it as directed

Two capsules once a day, 20 to 30 minutes before a meal, or as your healthcare professional directs. Do not exceed the recommended dose.

Step 02

Give it a few weeks

Give a new routine a few weeks of steady daily use. One bottle holds 30 servings, a 30-day supply.

Step 03

Review it with your provider

Bring your supplement list to your healthcare provider, especially if you have a thyroid condition, take thyroid medication, or are pregnant or nursing.

FAQ

Before you buy.

Our Recommendation

Three botanicals, every amount listed.

Irish moss, bladderwrack and burdock root with BioPerine, each listed with its own amount. Two capsules a day, third-party tested every batch.

Editor's Pick
CuraMyHealth Seamoss+
Seamoss+
CuraMyHealth · 60 capsules
9.5Score
  • 500 mg Irish moss, 500 mg bladderwrack, 400 mg burdock root per serving
  • 5 mg BioPerine; organic ingredients listed in the Supplement Facts
  • Third-party tested every batch; manufactured in USA with globally sourced materials
Check Availability →
60-day money-back guarantee · Save 15% on subscription
The Research

What the research covers.

The studies below look at seaweeds and burdock as foods and botanicals. They did not test Seamoss+.

Seaweeds such as Irish moss and bladderwrack contain minerals, including iodine, and the amount varies with the species and where it grows. Irish moss is also a source of carrageenan, a fiber used in foods. Burdock root has a long history in traditional food and herbal practice. Piperine, the active compound in black pepper extract, is often added to formulas to support nutrient absorption. Because seaweed takes up what is in the water around it, outside testing for purity matters.

References

  1. Wells ML, et al. Algae as nutritional and functional food sources. J Appl Phycol. 2017. PubMed
  2. Liu J, et al. Health benefits of Chondrus crispus (Irish moss) and its polysaccharides. J Funct Foods. 2015. PubMed
  3. Zava TT, Zava DT. Assessment of Japanese iodine intake based on seaweed consumption. Thyroid Res. 2011. PubMed
  4. Chan YS, et al. A review of the pharmacological effects of Arctium lappa (burdock). Inflammopharmacology. 2011. PubMed
  5. Rhein-Knudsen N, et al. Seaweed hydrocolloid production and quality. Mar Drugs. 2015. PubMed
  6. Product label and supporting information

Editorial Disclosure

Affiliate Disclosure: We may earn a commission when you buy through links on this page. Our rankings come from label review, third-party certifications and product details each brand makes public.

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement.

2026 © Top Certified Supplements Analysis. All rights reserved.

 

 

Advertising Disclosure

Top Certified Supplements Analysis is a supplement review site. Top Certified Supplements Analysis is owned and operated by the same company that owns certain products featured on this website, including the products ranked number one. The website is focused on providing information related to products we evaluated in comparison to other brands in terms of formulas, ingredients, dosage, science and refund policies.

In addition, we receive compensation from certain companies whose products are featured on this website when you purchase a product using the links on this website.