Iodine Liquid with Kelp
FailThe top 5 products take 86% of clicks, so Iodine Liquid with Kelp is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $797K/yr296K searches / yr
- 90-day growth
- -8.1%search demand this quarter
- Competition
- 86%top-5 click share · 8 brands · 508 sellers
Flapen Score
Iodine Liquid with Kelp against its category
The dotted line is the Health & Household average. Past it, Iodine Liquid with Kelp is stronger. Inside it, weaker.
Market
The Iodine Liquid with Kelp market on Amazon at a glance
Shoppers on Amazon United States searched for Iodine Liquid with Kelp 296K times last year and spent an estimated $797K. The top 5 brands take 92% of clicks. Demand peaks in Dec. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 16.8% of those searches ended in a purchase.
Shoppers searched for this 296K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 16.8% of those searches ended in a purchase. Searches in the last 90 days moved -8.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $797K a year.
- Searches, last 12 months
- 296K
- Growth, 90 days vs prior 90
- -8.1%
- Conversion, latest week
- 16.8%
- Market size, estimated
- $797Ka year
- Peak month
- December16.9× the quietest month
- Top search term
- sea iodine8K searches a year
02 · Price
A sale here is worth $16.01.
Listings sell for $16.01 on average, from $5.62 to $29.85. Amazon reports units sold in ranges. This niche sold 3K to 4K a year. The average listing sells 250 to 500 of them. At $16.01 that is $4K to $8K a year per listing.
- Average price
- $16.01inside the $15 to $100 sweet spot
- Price range
- $5.62–$29.85
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 3K–4K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $4K–$8K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
80% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #350 within Iodine. It carries 3,393 reviews at 4.65 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 80%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #350in Iodine
- Average rating
- 4.65 starsAmazon United States average 4.42 stars
- Average reviews
- 3,393per listing
- Listings tracked
- 10
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 103 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 103 months
Products
Top Iodine Liquid with Kelp products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 28, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Life Extension Sea-Iodine kelp and bladderwrack-derived Iodine Supports Healthy Levels of This Essential Nutrient for Thyroid Health and Beyond Non-GMO Gluten-Free Vegetarian 60 Capsules
- Price
- $5.62
- Rating
- 4.6/5
- Reviews
- 8,248
- Age
- 17y ago

Life Extension Sea-Iodine Capsules 1000 mcg 150 Veg Caps Natural Iodine Supplement from Kelp and Bladderwack
- Price
- $16.38
- Rating
- 4.6/5
- Reviews
- 2,248
- Age
- 7y ago

Life Extension Sea Iodine 1000 mcg 150 Veg Caps (Pack of 2) - Natural Iodine Supplement from Kelp and Bladderwack
- Price
- $29.85
- Rating
- 4.8/5
- Reviews
- 413
- Age
- 6y ago

Pure Encapsulations Iodine - Supplement to Support The Thyroid & Help Maintain Healthy Cellular Metabolism* - with Premium Potassium Iodide - 120 Capsules
- Price
- $20.01
- Rating
- 4.7/5
- Reviews
- 2,790
- Age
- 18y ago

NOW Supplements Kelp 150 mcg of Natural Iodine Easier to Swallow Tablet Super Green 200 Tablets
- Price
- $7.52
- Rating
- 4.6/5
- Reviews
- 1,482
- Age
- 19y ago
Trending
estimated 90-day click momentum
Zazzee USDA Organic Kelp Iodine 30:1 Extract 300 mcg per Capsule Vegan
- Price
- $19.40
- Rating
- 4.6/5
- Reviews
- 52
- Age
- 4y ago

MaryRuth Organics Iodine Liquid Drops | Potassium Iodide | 1 Year Supply | 450 Servings | Thyroid Health | USDA Organic| Vegan | Non-GMO | Gluten Free | 1 Fl Oz
- Price
- $18.37
- Rating
- 4.6/5
- Reviews
- 14,378
- Age
- 7y ago

Pure Encapsulations Iodine - Supplement to Support The Thyroid & Help Maintain Healthy Cellular Metabolism* - with Premium Potassium Iodide - 120 Capsules
- Price
- $20.01
- Rating
- 4.7/5
- Reviews
- 2,790
- Age
- 18y ago

Life Extension Sea-Iodine kelp and bladderwrack-derived Iodine Supports Healthy Levels of This Essential Nutrient for Thyroid Health and Beyond Non-GMO Gluten-Free Vegetarian 60 Capsules
- Price
- $5.62
- Rating
- 4.6/5
- Reviews
- 8,248
- Age
- 17y ago

Nutricost Iodine Natural Iodine from Organic Sea Kelp 325mcg 120 Caps
- Price
- $14.82
- Rating
- 4.7/5
- Reviews
- 294
- Age
- 4y ago
Newest
by launch date
Organic Iodine Supplement from Sea Vegetable Complex Whole Food & Raw Form - Iodine Plus Trace Mineral Complex Contains Purest Icelandic Sea Kelp Irish Moss & Bladderwrack (250 mcg)
- Price
- $17.79
- Rating
- 4.7/5
- Reviews
- 1,900
- Age
- 3y ago

Nutricost Iodine Natural Iodine from Organic Sea Kelp 325mcg 120 Caps
- Price
- $14.82
- Rating
- 4.7/5
- Reviews
- 294
- Age
- 4y ago

Zazzee USDA Organic Kelp Iodine 30:1 Extract 300 mcg per Capsule Vegan
- Price
- $19.40
- Rating
- 4.6/5
- Reviews
- 52
- Age
- 4y ago

Carlyle Sea Kelp Iodine Supplement | 225mcg | 300 Tablets
- Price
- $10.29
- Rating
- 4.6/5
- Reviews
- 2,128
- Age
- 4y ago

Life Extension Sea Iodine 1000 mcg 150 Veg Caps (Pack of 2) - Natural Iodine Supplement from Kelp and Bladderwack
- Price
- $29.85
- Rating
- 4.8/5
- Reviews
- 413
- Age
- 6y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 86% of clicks. A locked shelf that new listings rarely crack.
Brands
8 flat
Sellers
508
Est. top-5 brand share
92%
Top 20: 100%
Est. top-5 click share
86%
Top 20: 100%
Open market
5%
- Life Extension66%
- Pure Encapsulations11%
- NOW Foods8%
- MARYRUTH'S4%
- Zazzee3%
- Triquetra Health3%
- Open — no brand owns it (2 brands, 5%)
Demand
Iodine Liquid with Kelp search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Dec · busiest ÷ quietest = 16.9×
Search terms
Top Iodine Liquid with Kelp search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- sea iodine8K/yr
- iodine 150 mcg4K/yr
- iodine rich foods3K/yr
- iodine capsules4K/yr
- sea iodine life extension3K/yr
- kelp iodine liquid34K/yr
- iodine liquid with kelp242K/yr
Reviews and returns
What reviews say buyers love and hate about Iodine Liquid with Kelp
We read the reviews and the return reasons for every product selling here.
“our bodies are missing this vital nutrient”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
21 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Iodine Liquid with Kelp questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









