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Vitamin K2

Pass

Vitamin K2 scores 67 out of 100, a Pass. Shoppers spend an estimated $9.3M a year here, demand is soft, at -9.8% this quarter, and an estimated 0.0% of orders come back.

Flapen Score
67
67 / 100
Top 3% of 14,768 Health & Household niches · +18 vs the category median of 49
Market size
$9.3M/yr3.6M searches / yr
90-day growth
-9.8%search demand this quarter
Competition
43%top-5 click share · 21 brands · 614 sellers

Flapen Score

Vitamin K2 against its category

The dotted line is the Health & Household average. Past it, Vitamin K2 is stronger. Inside it, weaker.

67Pass
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Vitamin K2 market on Amazon at a glance

Shoppers on Amazon United States searched for Vitamin K2 3.6M times last year and spent an estimated $9.3M. The top 5 brands take 60% of clicks. Flapen scores it 67 out of 100, a Pass.

01 · Demand

An estimated 13.7% of those searches ended in a purchase.

Shoppers searched for this 3.6M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 13.7% 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 $9.3M a year.

Searches, last 12 months
3.6M
Growth, 90 days vs prior 90
-9.8%
Conversion, latest week
13.7%
Market size, estimated
$9.3Ma year
Peak month
January1.4× the quietest month
Top search term
vitamin k21.0M searches a year

02 · Price

A sale here is worth $18.85.

Listings sell for $18.85 on average, from $4.62 to $88.69. Amazon reports units sold in ranges. This niche sold 500K to 600K a year. The average listing sells 12,500 to 15,000 of them. At $18.85 that is $236K to $283K a year per listing.

Average price
$18.85inside the $15 to $100 sweet spot
Price range
$4.62–$88.69
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
500K–600K
Units per listing a year
12,500–15,000
Revenue per listing a year
$236K–$283K
Returns
0.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is ads and reviews.

94% 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 #211 within Vitamin K1. It carries 7,339 reviews at 4.69 stars, so a new listing needs social proof before a better product.

Sponsored listings
94%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#211in Vitamin K1
Average rating
4.69 starsAmazon United States average 4.42 stars
Average reviews
7,339per listing
Listings tracked
36

04 · Newcomers

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

1 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 61 months on average, so the names here are established.

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

Products

Top Vitamin K2 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 43% of clicks. Leaders hold, but buyers still shop past them.

Brands

21 falling

Sellers

614

Top-5 brand share

60%

Top 20: 99%

Top-5 click share

43%

Top 20: 84%

Open market

33%

  • Brand 116%
  • Brand 213%
  • Brand 313%
  • Brand 412%
  • Brand 57%
  • Brand 67%

Demand

Vitamin K2 search demand

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

80K60KHoliday '24Spike '25Prime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

Search terms

Top Vitamin K2 search terms shoppers use

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

  • vitamin k21.0M/yr
  • k2 vitamin supplement708K/yr
  • vitamin k498K/yr
  • vitamin k2 mk7184K/yr
  • k2 mk7119K/yr
  • mk7 vitamin k286K/yr
  • vit k251K/yr
  • mk755K/yr
  • k2 mk7 vitamin supplement55K/yr
  • vitamin k2 mk-737K/yr

Reviews and returns

What reviews say buyers love and hate about Vitamin K2

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

22%of positive reviews mention “Quality-Overall”
10%of negative reviews mention “Vitamin”
<0.1%of orders come back, a rate Amazon rounds to zero
“Vitamins were bad”
A buyer, on “Vitamin”10% 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.

20 topics

NegativePositive

FAQ

Common Vitamin K2 questions

Answered from the same tracked data.