- Flapen Score
- 43 / 100Ranks 298 of 371 Health niches · −8 vs the category median of 5143
- Market size
- $189K/yr25K searches / yr
- 90-day growth
- +19.9%search demand this quarter
- Competition
- 100%top-5 click share · 4 brands · 22 sellers
Flapen Score
Selenium against its category
The dotted line is the Health average. Past it, Selenium is stronger. Inside it, weaker.
Market
The Selenium market on Amazon at a glance
Shoppers on Amazon United Arab Emirates searched for Selenium 25K times last year and spent an estimated $189K. All 4 brands take every click. Flapen scores it 43 out of 100, a Fail.
01 · Demand
An estimated 10.7% of those searches ended in a purchase.
Shoppers searched for this 25K times in the last 12 months. That counts every search on Amazon United Arab Emirates for this niche's terms. An estimated 10.7% of those searches ended in a purchase. Searches in the last 90 days moved +19.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $189K a year.
- Searches, last 12 months
- 25K
- Growth, 90 days vs prior 90
- +19.9%
- Conversion, latest week
- 10.7%
- Market size, estimated
- $189Ka year
- Peak month
- June1.5× the quietest month
- Top search term
- selenium17K searches a year
02 · Price
A sale here is worth $70.74.
Listings sell for $70.74 on average, from $37.74 to $148.62. Amazon reports units sold in ranges. This niche sold 3K to 3K a year. The average listing sells 500 to 750 of them. At $70.74 that is $35K to $53K a year per listing.
- Average price
- $70.74inside the $15 to $100 sweet spot
- Price range
- $37.74–$148.62
- Amazon United Arab Emirates median price
- $60.52across 3,090 niches
- Units sold a year
- 3K–3K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $35K–$53K
- Returns
- 0.2%of orders · Amazon United Arab Emirates median 1.6%
03 · Entry bar
The bar here is reviews.
75% 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 #275 within Diet & Nutrition. It carries 2,468 reviews at 4.63 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 75%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #275in Diet & Nutrition
- Average rating
- 4.63 starsAmazon United Arab Emirates average 4.27 stars
- Average reviews
- 2,468per listing
- Listings tracked
- 4
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 82 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
- 82 months
Products
Top Selenium 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 23, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Life Extension Super Selenium Complex 200 mcg & Vitamin E Providing the Most Advanced Form of Selenium 100 Vegetarian Capsules
- Price
- $38.47
- Rating
- 4.6/5
- Reviews
- 6,669
- Age
- 13y ago

Healthy Origins Selenium 200 mcg 180 Capsules - SelenoExcell High Bioavailability Organically Bound Fermented Selenium - Supports Immune System Function Thyroid Health & Healthy Cellular Support
- Price
- $58.15
- Rating
- 4.6/5
- Reviews
- 1,803
- Age
- 13y ago

THORNE Thyroid Health Complex - Thyroid Cofactors for Thyroid Function Support - Vitamins B12 C & E Ashwagandha Iodine Zinc Selenium Copper & L-Tyrosine - Third-Party Certified - 120 Servings
- Price
- $148.62
- Rating
- 4.6/5
- Reviews
- 1,087
- Age
- 13y ago

Now Foods Selenium 200mcg | Yeast-Free Selenium Mineral for Antioxidant Protection & Immune System Support & Thyroid Health | 90 Veg Capsules
- Price
- $37.74
- Rating
- 4.7/5
- Reviews
- 311
- Age
- 13y ago
Trending
estimated 90-day click momentum
Healthy Origins Selenium 200 mcg 180 Capsules - SelenoExcell High Bioavailability Organically Bound Fermented Selenium - Supports Immune System Function Thyroid Health & Healthy Cellular Support
- Price
- $58.15
- Rating
- 4.6/5
- Reviews
- 1,803
- Age
- 13y ago

THORNE Thyroid Health Complex - Thyroid Cofactors for Thyroid Function Support - Vitamins B12 C & E Ashwagandha Iodine Zinc Selenium Copper & L-Tyrosine - Third-Party Certified - 120 Servings
- Price
- $148.62
- Rating
- 4.6/5
- Reviews
- 1,087
- Age
- 13y ago

Life Extension Super Selenium Complex 200 mcg & Vitamin E Providing the Most Advanced Form of Selenium 100 Vegetarian Capsules
- Price
- $38.47
- Rating
- 4.6/5
- Reviews
- 6,669
- Age
- 13y ago

Now Foods Selenium 200mcg | Yeast-Free Selenium Mineral for Antioxidant Protection & Immune System Support & Thyroid Health | 90 Veg Capsules
- Price
- $37.74
- Rating
- 4.7/5
- Reviews
- 311
- Age
- 13y ago
Newest
by launch date
Life Extension Super Selenium Complex 200 mcg & Vitamin E Providing the Most Advanced Form of Selenium 100 Vegetarian Capsules
- Price
- $38.47
- Rating
- 4.6/5
- Reviews
- 6,669
- Age
- 13y ago

Healthy Origins Selenium 200 mcg 180 Capsules - SelenoExcell High Bioavailability Organically Bound Fermented Selenium - Supports Immune System Function Thyroid Health & Healthy Cellular Support
- Price
- $58.15
- Rating
- 4.6/5
- Reviews
- 1,803
- Age
- 13y ago

THORNE Thyroid Health Complex - Thyroid Cofactors for Thyroid Function Support - Vitamins B12 C & E Ashwagandha Iodine Zinc Selenium Copper & L-Tyrosine - Third-Party Certified - 120 Servings
- Price
- $148.62
- Rating
- 4.6/5
- Reviews
- 1,087
- Age
- 13y ago

Now Foods Selenium 200mcg | Yeast-Free Selenium Mineral for Antioxidant Protection & Immune System Support & Thyroid Health | 90 Veg Capsules
- Price
- $37.74
- Rating
- 4.7/5
- Reviews
- 311
- Age
- 13y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 100% of clicks. A locked shelf that new listings rarely crack.
Brands
4 falling
Sellers
22
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
100%
Top 20: 100%
Open market
0%
- Life Extension67%
- Healthy Origins21%
- THORNE6%
- NOW6%
Demand
Selenium search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.5×
Search terms
Top Selenium search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- selenium17K/yr
- selenium 200mcg5K/yr
- selenium supplement3K/yr
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 Selenium 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









