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Nattokinase 100mg

Fail

The top 5 brands take 97% of clicks, so Nattokinase 100mg is a Fail.

Flapen Score
46
46 / 100
Ranks 9,041 of 14,768 Health & Household niches · −3 vs the category median of 49
Market size
$210K/yr70K searches / yr
90-day growth
+9.8%search demand this quarter
Competition
90%top-5 click share · 6 brands · 28 sellers

Flapen Score

Nattokinase 100mg against its category

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

46Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Nattokinase 100mg market on Amazon at a glance

Shoppers on Amazon United States searched for Nattokinase 100mg 70K times last year and spent an estimated $210K. The top 5 brands take 97% of clicks. Flapen scores it 46 out of 100, a Fail.

01 · Demand

An estimated 14.4% 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 14.4% of those searches ended in a purchase. Searches in the last 90 days moved +9.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $210K a year.

Searches, last 12 months
70K
Growth, 90 days vs prior 90
+9.8%
Conversion, latest week
14.4%
Market size, estimated
$210Ka year
Peak month
March2.2× the quietest month
Top search term
nattokinase 2000 fu39K searches a year

02 · Price

A sale here is worth $20.85.

Listings sell for $20.85 on average, from $12.49 to $31.81. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 1,000 to 1,250 of them. At $20.85 that is $21K to $26K a year per listing.

Average price
$20.85inside the $15 to $100 sweet spot
Price range
$12.49–$31.81
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
10K–13K
Units per listing a year
1,000–1,250
Revenue per listing a year
$21K–$26K
Returns
0.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

88% 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 #639 within Enzymes. It carries 3,651 reviews at 4.61 stars, so a new listing needs social proof before a better product.

Sponsored listings
88%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#639in Enzymes
Average rating
4.61 starsAmazon United States average 4.42 stars
Average reviews
3,651per listing
Listings tracked
8

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 56 months on average, so the names here are settling in.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
56 months

Products

Top Nattokinase 100mg 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 26, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 90% of clicks. A locked shelf that new listings rarely crack.

$0$31K$63K$94K$126K1001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

6 falling

Sellers

28

Est. top-5 brand share

97%

Top 20: 100%

Est. top-5 click share

90%

Top 20: 100%

Open market

0%

  • Doctor's BEST67%
  • Nutricost13%
  • Zenavea10%
  • NOW Foods4%
  • Double Wood Supplements3%
  • BulkSupplements3%

Demand

Nattokinase 100mg search demand

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

3K2KSpike '24Holiday '24Spike '25Holiday '25Spike '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 2.2×

Search terms

Top Nattokinase 100mg search terms shoppers use

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

  • nattokinase 2000 fu39K/yr
  • doctors best nattokinase14K/yr
  • nattokinase doctors best3K/yr
  • doctors best nattokinase 2000 fu4K/yr
  • dr best nattokinase3K/yr
  • nattokinase 100mg4K/yr
  • drs best nattokinase2K/yr

Reviews and returns

What reviews say buyers love and hate about Nattokinase 100mg

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

27%of positive reviews mention “Quality-Overall”
13%of negative reviews mention “Dosage”
<0.1%of orders come back, a rate Amazon rounds to zero
“Doses far too low to do anything”
A buyer, on “Dosage”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.

15 topics

NegativePositive

FAQ

Common Nattokinase 100mg 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