Vitamin K Complex
FailThe top 5 brands take 100% of clicks, so Vitamin K Complex is a Fail.
- Flapen Score
- 48 / 100Ranks 7,720 of 14,768 Health & Household niches · −1 vs the category median of 4948
- Market size
- $794K/yr189K searches / yr
- 90-day growth
- -0.3%search demand this quarter
- Competition
- 90%top-5 click share · 5 brands · 17 sellers
Flapen Score
Vitamin K Complex against its category
The dotted line is the Health & Household average. Past it, Vitamin K Complex is stronger. Inside it, weaker.
Market
The Vitamin K Complex market on Amazon at a glance
Shoppers on Amazon United States searched for Vitamin K Complex 189K times last year and spent an estimated $794K. All 5 brands take every click. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 13.6% of those searches ended in a purchase.
Shoppers searched for this 189K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 13.6% of those searches ended in a purchase. Searches in the last 90 days moved -0.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $794K a year.
- Searches, last 12 months
- 189K
- Growth, 90 days vs prior 90
- -0.3%
- Conversion, latest week
- 13.6%
- Market size, estimated
- $794Ka year
- Peak month
- February1.7× the quietest month
- Top search term
- super k66K searches a year
02 · Price
A sale here is worth $30.86.
Listings sell for $30.86 on average, from $9.92 to $73.59. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 3,000 to 4,000 of them. At $30.86 that is $93K to $123K a year per listing.
- Average price
- $30.86inside the $15 to $100 sweet spot
- Price range
- $9.92–$73.59
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 3,000–4,000
- Revenue per listing a year
- $93K–$123K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% 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 #143 within Vitamin K1. It carries 3,137 reviews at 4.66 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #143in Vitamin K1
- Average rating
- 4.66 starsAmazon United States average 4.42 stars
- Average reviews
- 3,137per listing
- Listings tracked
- 9
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 84 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
- 84 months
Products
Top Vitamin K Complex 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 29, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Life Extension Super K Vitamin K Supplement 2000 Mcg Vitamin K and 1180 Mcg Vitamin K2 Heart Health Once-Daily 90 Softgels
- Price
- $19.39
- Rating
- 4.6/5
- Reviews
- 6,990
- Age
- 7y ago

THORNE - Vitamin K - Vitamins K1 and K2 (as MK-4 and MK-7) Capsule Supplement - Supports Strong Bones* - Clinically Studied Ingredients - Third-Party Certified - Gluten Dairy & Soy-Free - 60 Capsules
- Price
- $29.95
- Rating
- 4.8/5
- Reviews
- 1,793
- Age
- 8y ago

Life Extension Super K 150 Softgels with Vitamin K1 and K2 - MK4 & MK7
- Price
- $37.74
- Rating
- 4.8/5
- Reviews
- 1,155
- Age
- 7y ago

THORNE - Vitamin K2 - Concentrated Vitamin K2 (as MK-4) Liquid Supplement - Supports Bone Heart & and Blood Vessel Health* - Third-Party Certified - Gluten Dairy & Soy-Free - 1 Fl Oz
- Price
- $73.59
- Rating
- 4.4/5
- Reviews
- 498
- Age
- 21y ago

Bronson Vitamin K Triple Play (Vitamin K2 MK7 / Vitamin K2 MK4 / Vitamin K1) Full Spectrum Complex Vitamin K Supplement 90 Capsules
- Price
- $9.92
- Rating
- 4.7/5
- Reviews
- 8,555
- Age
- 8y ago
Trending
estimated 90-day click momentum
Bronson Vitamin K Triple Play (Vitamin K2 MK7 / Vitamin K2 MK4 / Vitamin K1) Full Spectrum Complex Vitamin K Supplement 90 Capsules
- Price
- $9.92
- Rating
- 4.7/5
- Reviews
- 8,555
- Age
- 8y ago

Life Extension Mega Vitamin K2 High Potency for Strong Bones clinically Studied 45 mg K2 Dosage Promotes Healthy Bone Density Gluten-Free Non-GMO 30 Capsules
- Price
- $25.46
- Rating
- 4.7/5
- Reviews
- 812
- Age
- 5y ago

Life Extension Super K 150 Softgels with Vitamin K1 and K2 - MK4 & MK7
- Price
- $37.74
- Rating
- 4.8/5
- Reviews
- 1,155
- Age
- 7y ago

THORNE - Vitamin K - Vitamins K1 and K2 (as MK-4 and MK-7) Capsule Supplement - Supports Strong Bones* - Clinically Studied Ingredients - Third-Party Certified - Gluten Dairy & Soy-Free - 60 Capsules
- Price
- $29.95
- Rating
- 4.8/5
- Reviews
- 1,793
- Age
- 8y ago

NatureBell Vitamin K Complex - 300 Softgels - Delivers 2 600mcg Vitamin K - Full Spectrum Bone & Heart Health Support Supplement - High Absorption K1 & K2 MK-4 & MK-7*
- Price
- $24.13
- Rating
- 4.7/5
- Reviews
- 1,326
- Age
- 3y ago
Newest
by launch date
Super Vitamin K Complex (K2 MK7 + MK4 & K1) 360 Coconut Oil Softgles | Easily Absorbed K Vitamins Active Menaquinone Complex | Non-GMO
- Price
- $24.60
- Rating
- 4.8/5
- Reviews
- 444
- Age
- 3y ago

NatureBell Vitamin K Complex - 300 Softgels - Delivers 2 600mcg Vitamin K - Full Spectrum Bone & Heart Health Support Supplement - High Absorption K1 & K2 MK-4 & MK-7*
- Price
- $24.13
- Rating
- 4.7/5
- Reviews
- 1,326
- Age
- 3y ago

Life Extension Mega Vitamin K2 High Potency for Strong Bones clinically Studied 45 mg K2 Dosage Promotes Healthy Bone Density Gluten-Free Non-GMO 30 Capsules
- Price
- $25.46
- Rating
- 4.7/5
- Reviews
- 812
- Age
- 5y ago

Life Extension Super K 150 Softgels with Vitamin K1 and K2 - MK4 & MK7
- Price
- $37.74
- Rating
- 4.8/5
- Reviews
- 1,155
- Age
- 7y ago

Life Extension Super K Vitamin K Supplement 2000 Mcg Vitamin K and 1180 Mcg Vitamin K2 Heart Health Once-Daily 90 Softgels
- Price
- $19.39
- Rating
- 4.6/5
- Reviews
- 6,990
- Age
- 7y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 90% of clicks. A locked shelf that new listings rarely crack.
Brands
5 flat
Sellers
17
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
90%
Top 20: 100%
Open market
0%
- Life Extension48%
- THORNE43%
- Bronson4%
- NatureBell3%
- Micro Ingredients2%
Demand
Vitamin K Complex search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.7×
Search terms
Top Vitamin K Complex search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- super k66K/yr
- thorne k219K/yr
- life extension super k18K/yr
- thorne vitamin k15K/yr
- vitamin k complex12K/yr
- superk10K/yr
- thorne vitamin k29K/yr
- vitamin c and k5K/yr
- vitamin k1 and k26K/yr
- super k life extension5K/yr
Reviews and returns
What reviews say buyers love and hate about Vitamin K Complex
We read the reviews and the return reasons for every product selling here.
“The dropper is very hard to use”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Vitamin K Complex 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









