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Oyster Shell Calcium 500mg

Fail

The top 5 brands take 97% of clicks, so Oyster Shell Calcium 500mg is a Fail.

Flapen Score
47
47 / 100
Ranks 8,381 of 14,768 Health & Household niches · −2 vs the category median of 49
Market size
$80K/yr32K searches / yr
90-day growth
+13.7%search demand this quarter
Competition
69%top-5 click share · 7 brands · 45 sellers

Flapen Score

Oyster Shell Calcium 500mg against its category

The dotted line is the Health & Household average. Past it, Oyster Shell Calcium 500mg is stronger. Inside it, weaker.

47Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Oyster Shell Calcium 500mg market on Amazon at a glance

Shoppers on Amazon United States searched for Oyster Shell Calcium 500mg 32K times last year and spent an estimated $80K. The top 5 brands take 97% of clicks. Flapen scores it 47 out of 100, a Fail.

01 · Demand

An estimated 15.3% of those searches ended in a purchase.

Shoppers searched for this 32K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 15.3% of those searches ended in a purchase. Searches in the last 90 days moved +13.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $80K a year.

Searches, last 12 months
32K
Growth, 90 days vs prior 90
+13.7%
Conversion, latest week
15.3%
Market size, estimated
$80Ka year
Peak month
June1.3× the quietest month
Top search term
oyster shell calcium 500mg14K searches a year

02 · Price

A sale here is worth $16.31.

Listings sell for $16.31 on average, from $7.00 to $34.76. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 250 to 500 of them. At $16.31 that is $4K to $8K a year per listing.

Average price
$16.31inside the $15 to $100 sweet spot
Price range
$7.00–$34.76
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
5K–6K
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 low.

56% of listings pay for placement with sponsored ads. 89% ship with Prime. On an average day, 0.5% of listings are out of stock. The average listing ranks #946 within Calcium. It carries 886 reviews at 4.66 stars, so a new listing needs social proof before a better product.

Sponsored listings
56%
Prime listings
89%
Out of stock, average day
0.5%
Average rank
#946in Calcium
Average rating
4.66 starsAmazon United States average 4.42 stars
Average reviews
886per listing
Listings tracked
18

04 · Newcomers

1 of last year's 4 launches cleared the first-year sales bar.

4 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 89 months on average, so the names here are established.

Launched, last 12 months
4
Successful launches
1Amazon's first-year sales bar
Average brand age
89 months

Products

Top Oyster Shell Calcium 500mg 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 69% of clicks. Leaders hold, but buyers still shop past them.

Brands

7 flat

Sellers

45

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

69%

Top 20: 100%

Open market

1%

  • Brand 154%
  • Brand 231%
  • Brand 37%
  • Brand 43%
  • Brand 52%
  • Brand 62%
  • Open — no brand owns it (1 brand, 1%)

Demand

Oyster Shell Calcium 500mg search demand

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

800600Holiday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Oyster Shell Calcium 500mg search terms shoppers use

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

  • oyster shell calcium 500mg14K/yr
  • oyster shell calcium14K/yr
  • oyster shell calcium 500mg with vitamin d34K/yr

Reviews and returns

What reviews say buyers love and hate about Oyster Shell Calcium 500mg

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

18%of positive reviews mention “Calcium”
35%of negative reviews mention “Size-Overall”
<0.1%of orders come back, a rate Amazon rounds to zero
“very tiny”
A buyer, on “Size-Overall”35% 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.

17 topics

NegativePositive

FAQ

Common Oyster Shell Calcium 500mg questions

Answered from the same tracked data.