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Nattokinase

Maybe

An estimated 0.0% of orders come back. But the top 5 products take 83% of clicks, so Nattokinase is a Maybe.

Flapen Score
56
56 / 100
Top 18% of 2,035 Health & Personal Care niches · +8 vs the category median of 48
Market size
£363K/yr219K searches / yr
90-day growth
+19.2%search demand this quarter
Competition
83%top-5 click share · 10 brands · 10 sellers

Flapen Score

Nattokinase against its category

The dotted line is the Health & Personal Care average. Past it, Nattokinase is stronger. Inside it, weaker.

56Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Nattokinase market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Nattokinase 219K times last year and spent an estimated £363K. The top 5 brands take 87% of clicks. Demand peaks in May–Jun. Flapen scores it 56 out of 100, a Maybe.

01 · Demand

An estimated 9.0% of those searches ended in a purchase.

Shoppers searched for this 219K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 9.0% of those searches ended in a purchase. Searches in the last 90 days moved +19.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £363K a year.

Searches, last 12 months
219K
Growth, 90 days vs prior 90
+19.2%
Conversion, latest week
9.0%
Market size, estimated
£363Ka year
Peak month
June2.1× the quietest month
Top search term
nattokinase150K searches a year

02 · Price

A sale here is worth £18.43.

Listings sell for £18.43 on average, from £5.69 to £55.46. Amazon reports units sold in ranges. This niche sold 25K to 30K a year. The average listing sells 2,000 to 2,500 of them. At £18.43 that is £37K to £46K a year per listing.

Average price
£18.43inside the $15 to $100 sweet spot
Price range
£5.69–£55.46
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
25K–30K
Units per listing a year
2,000–2,500
Revenue per listing a year
£37K–£46K
Returns
0.0%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is ads.

91% 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 #41 within Enzymes. It carries 364 reviews at 4.48 stars, so a new listing needs social proof before a better product.

Sponsored listings
91%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#41in Enzymes
Average rating
4.48 starsAmazon United Kingdom average 4.36 stars
Average reviews
364per listing
Listings tracked
11

04 · Newcomers

1 of last year's 3 launches cleared the first-year sales bar.

3 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 36 months on average, so the names here are settling in.

Launched, last 12 months
3
Successful launches
1Amazon's first-year sales bar
Average brand age
36 months

Products

Top Nattokinase 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 25, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 83% of clicks. A locked shelf that new listings rarely crack.

£0£36K£73K£109K£145K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

10 falling

Sellers

10

Est. top-5 brand share

87%

Top 20: 100%

Est. top-5 click share

83%

Top 20: 100%

Open market

10%

  • Hybrid Health36%
  • Natural Foundation22%
  • Vinco Supplements15%
  • RAIBU11%
  • AuranC-H3%
  • ECO-VITS3%
  • Open — no brand owns it (4 brands, 10%)

Demand

Nattokinase search demand

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

7K5KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26DecMarJunAugNovMarMay

Peak months: May, Jun · busiest ÷ quietest = 2.1×

Search terms

Top Nattokinase search terms shoppers use

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

  • nattokinase150K/yr
  • nattokinase organic uk32K/yr
  • nattokinase high strength14K/yr
  • nattokinase enzyme nutritional supplements15K/yr
  • nattokinase 10000 fu4K/yr
  • nattokinase uk4K/yr

Reviews and returns

What reviews say buyers love and hate about Nattokinase

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

21%of positive reviews mention “Quality-Overall”
27%of negative reviews mention “Dosage”
<0.1%of orders come back, a rate Amazon rounds to zero
“Under dosed”
A buyer, on “Dosage”27% 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.

14 topics

NegativePositive

FAQ

Common Nattokinase 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