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Selenium 100 Mcg

Fail

Demand is soft, at -10.1% this quarter, so Selenium 100 Mcg is a Fail.

Flapen Score
49
49 / 100
Ranks 7,059 of 14,768 Health & Household niches · on the category median
Market size
$177K/yr70K searches / yr
90-day growth
-10.1%search demand this quarter
Competition
59%top-5 click share · 12 brands · 551 sellers

Flapen Score

Selenium 100 Mcg against its category

The dotted line is the Health & Household average. Past it, Selenium 100 Mcg is stronger. Inside it, weaker.

49Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Selenium 100 Mcg market on Amazon at a glance

Shoppers on Amazon United States searched for Selenium 100 Mcg 70K times last year and spent an estimated $177K. The top 5 brands take 85% of clicks. Demand peaks in Sep–Oct–Nov–Dec. Flapen scores it 49 out of 100, a Fail.

01 · Demand

An estimated 15.6% of those searches ended in a purchase.

Shoppers searched for this 70K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 15.6% of those searches ended in a purchase. Searches in the last 90 days moved -10.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $177K a year.

Searches, last 12 months
70K
Growth, 90 days vs prior 90
-10.1%
Conversion, latest week
15.6%
Market size, estimated
$177Ka year
Peak month
October13.0× the quietest month
Top search term
selenium 100 mcg38K searches a year

02 · Price

A sale here is worth $16.17.

Listings sell for $16.17 on average, from $4.99 to $39.34. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 500 to 750 of them. At $16.17 that is $8K to $12K a year per listing.

Average price
$16.17inside the $15 to $100 sweet spot
Price range
$4.99–$39.34
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
10K–13K
Units per listing a year
500–750
Revenue per listing a year
$8K–$12K
Returns
0.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

67% 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 #124 within Selenium. It carries 2,694 reviews at 4.63 stars, so a new listing needs social proof before a better product.

Sponsored listings
67%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#124in Selenium
Average rating
4.63 starsAmazon United States average 4.42 stars
Average reviews
2,694per listing
Listings tracked
21

04 · Newcomers

Brands here are established.

The brands on the shelf have sold for 120 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
120 months

Products

Top Selenium 100 Mcg 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.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 59% of clicks. Leaders hold, but buyers still shop past them.

$0$9K$18K$27K$35K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

12 rising

Sellers

551

Est. top-5 brand share

85%

Top 20: 100%

Est. top-5 click share

59%

Top 20: 99%

Open market

10%

  • NOW Foods56%
  • Nutricost10%
  • Amazing Nutrition7%
  • Pure Encapsulations6%
  • THORNE5%
  • SOLARAY5%
  • Open — no brand owns it (6 brands, 10%)

Demand

Selenium 100 Mcg search demand

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

25K15KSpike '24Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 13.0×

Search terms

Top Selenium 100 Mcg search terms shoppers use

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

  • selenium 100 mcg38K/yr
  • selenium 100mcg6K/yr
  • now selenium 200 mcg6K/yr
  • now selenium8K/yr
  • selenium now4K/yr
  • selenio 100mg3K/yr
  • selenium 1003K/yr
  • now foods selenium 200 mcg2K/yr

Reviews and returns

What reviews say buyers love and hate about Selenium 100 Mcg

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

22%of positive reviews mention “Quality-Overall”
29%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”29% 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 100 Mcg 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