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Selenium

Maybe

An estimated 0.0% of orders come back. But demand is soft, at -8.8% this quarter, so Selenium is a Maybe.

Flapen Score
62
62 / 100
Top 8% of 14,768 Health & Household niches · +13 vs the category median of 49
Market size
$3.7M/yr1.6M searches / yr
90-day growth
-8.8%search demand this quarter
Competition
51%top-5 click share · 16 brands · 35 sellers

Flapen Score

Selenium against its category

The dotted line is the Health & Household average. Past it, Selenium is stronger. Inside it, weaker.

62Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Selenium market on Amazon at a glance

Shoppers on Amazon United States searched for Selenium 1.6M times last year and spent an estimated $3.7M. The top 5 brands take 70% of clicks. Flapen scores it 62 out of 100, a Maybe.

01 · Demand

An estimated 13.8% of those searches ended in a purchase.

Shoppers searched for this 1.6M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 13.8% of those searches ended in a purchase. Searches in the last 90 days moved -8.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $3.7M a year.

Searches, last 12 months
1.6M
Growth, 90 days vs prior 90
-8.8%
Conversion, latest week
13.8%
Market size, estimated
$3.7Ma year
Peak month
January1.3× the quietest month
Top search term
selenium944K searches a year

02 · Price

A sale here is worth $16.40.

Listings sell for $16.40 on average, from $4.99 to $35.95. Amazon reports units sold in ranges. This niche sold 200K to 250K a year. The average listing sells 8,000 to 10,000 of them. At $16.40 that is $131K to $164K a year per listing.

Average price
$16.40inside the $15 to $100 sweet spot
Price range
$4.99–$35.95
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
200K–250K
Units per listing a year
8,000–10,000
Revenue per listing a year
$131K–$164K
Returns
0.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

78% 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 #84 within Selenium. It carries 4,396 reviews at 4.63 stars, so a new listing needs social proof before a better product.

Sponsored listings
78%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#84in Selenium
Average rating
4.63 starsAmazon United States average 4.42 stars
Average reviews
4,396per listing
Listings tracked
23

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 83 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
83 months

Products

Top Selenium products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 51% of clicks. Leaders hold, but buyers still shop past them.

Brands

16 falling

Sellers

35

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

51%

Top 20: 97%

Open market

24%

  • Brand 118%
  • Brand 217%
  • Brand 312%
  • Brand 412%
  • Brand 511%
  • Brand 66%

Demand

Selenium search demand

Weekly searches over the year, seasonality beneath. Pick a range.

35K25KSpike '25Prime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Selenium search terms shoppers use

The exact words shoppers type, with yearly volume, growth, and conversion.

  • selenium944K/yr
  • selenium 200mcg capsules174K/yr
  • selenium supplements for women183K/yr
  • selenio54K/yr
  • selenium 200mcg33K/yr
  • selenium supplement60K/yr
  • selenio organico para tiroides31K/yr
  • selen38K/yr
  • selenomethionine29K/yr
  • selenio 200mg25K/yr

Reviews and returns

What reviews say buyers love and hate about Selenium

We read the reviews and the return reasons for every product selling here.

17%of positive reviews mention “Quality-Overall”
13%of negative reviews mention “Smell”
<0.1%of orders come back, a rate Amazon rounds to zero
“it has disgusting smell”
A buyer, on “Smell”13% of negative reviews mention the same topic

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.

19 topics

NegativePositive

FAQ

Common Selenium questions

Answered from the same tracked data.