- Retailer: Alkaline Herb Shop
- Format: Capsules
- Size: 200 vegetable capsules
- Price: $49.99 on November 3, 2026 (may change)
- Lab evidence: Merchant states third-party testing. CannaWize has not reviewed the results.
The retailer lists this product as vegetable capsules containing Chondrus crispus (sea moss) and Fucus vesiculosus (bladderwrack), and it publishes an unusually specific iodine figure from a lab summary. That makes it a good product for learning how to read testing claims, and a clear example of why iodine deserves attention. Everything below is the retailer's statement unless we say we checked it.
What the listing says
- Ingredients: 300 mg of Irish sea moss and 300 mg of bladderwrack per capsule, which the retailer states is 900 mg of each in a three-capsule serving.
- Count and directions: 200 vegetable capsules. The retailer lists a daily serving of 3 capsules, about a two-month supply.
- Origin and manufacturing: described as wildcrafted from the cold North Atlantic and manufactured in the USA. We have not verified this.
- Testing claim: the retailer says it tests every batch twice through an independent lab, once when the raw seaweed arrives and again after the capsules are made, for identity, microbials and heavy metals.
The lab summary, and a discrepancy
The retailer's lab summary page says a three-capsule serving was sent to an independent laboratory, with testing completed December 16, 2025 for lot 250639. It reports 552 micrograms of iodine per serving (368 percent of the Daily Value) and 2 milligrams of iron.
The product page for the same item reports 561 micrograms of iodine (374 percent of the Daily Value) from a December 2025 test. The difference between 552 and 561 is small, but it means two pages describe one test with two numbers. We have not seen the underlying laboratory report, so we cannot say which figure is right. If you buy this product, ask the seller for the full report and compare the lot number with your bottle.
The summary page does not publish measured heavy metal or microbial values. A statement that a product was tested for them is a claim, not a result. Our lab report guide explains the difference.
Putting the iodine number in context
NIH sets the adult recommended iodine intake at 150 micrograms a day and the tolerable upper limit at 1,100 micrograms a day from food and supplements combined. Using the retailer's figures, one serving provides 552 to 561 micrograms, which is roughly half of the adult upper limit and about 3.7 times the recommended intake. Other iodine from food, salt or a multivitamin adds to that. The retailer's own page advises people with a thyroid condition to talk to a doctor first, which matches NIH guidance. This is reference information, not a dosing recommendation. Read how much iodine is too much and ask a clinician if you have thyroid disease, are pregnant or breastfeeding, or take medication.
Price and value
The retailer listed the product at $49.99 when we checked on October 28, 2026. At three capsules per serving, 200 capsules is about 66 servings, or roughly $0.75 per serving. Prices change, so confirm on the retailer's page. For a cost comparison across formats, see gel vs capsules vs raw.
What the evidence says about the ingredients
Reviews of sea moss and of bladderwrack describe findings mostly from laboratory and animal studies, with limited human trials. The retailer states that the two are mineral-rich sea vegetables and not medicines. We agree with that framing and do not make health claims for this product. Our sea moss and bladderwrack guide covers the ingredients and the evidence limits.
What to check before you buy
- Confirm the serving size and iodine per serving on the current label.
- Ask for the full certificate of analysis, including heavy metals and microbial results, for the lot you will receive.
- Ask which iodine figure is correct, 552 or 561 micrograms.
- Think about your total daily iodine from all sources.
- Consider the single-ingredient alternatives: sea moss capsules alone, or bladderwrack alone, which have simpler labels.
Frequently asked questions
How much iodine is in this product?
The retailer's lab summary says 552 micrograms per three-capsule serving for lot 250639, and its product page says 561. We have not seen the full report and have not reconciled the two figures. Either is roughly half of the 1,100 microgram adult upper limit.
How many servings are in a bottle and what is the cost per serving?
At three capsules per serving, 200 capsules is about 66 servings. At $49.99 on October 28, 2026, that is roughly $0.75 per serving. Verify the current price on the retailer's page.
Has this product been lab tested?
The retailer says it tests every batch twice through an independent lab and publishes an iodine and iron summary for one lot. It does not publish measured heavy metal or microbial values on that page, so those results are a claim, not something we can show you.
Who should check with a clinician first?
Anyone with a thyroid condition, who is pregnant or breastfeeding, or who takes medication. The retailer's own page gives the same advice for thyroid conditions, and the NIH says iodine can interact with some medicines.
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.