---
title: "Vitamin K2 Mk4 Mk7 — $29K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/vitamin-k2-mk4-mk7"
last_updated: "2026-08-10T10:13:52.710Z"
locale: en
meta:
description: "Niche score 40/100 · $29K/yr market · 6K searches/yr · $20.27 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $29K/yr market · 6K searches/yr · $20.27 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin K2 Mk4 Mk7 — $29K/yr Amazon US Niche (2026) - Flapen"
---
# **vitamin k2 mk4 mk7**
**Skip it**
A small market ($29K/yr) — this niche doesn't clear our bar today.
Market size 7Growth 16Conversion 100Competition 15Returns 100Price range 75Avg price 88Brand share 33Review moat 27Quality gap 18
**Conversion**
**Incredible****22.1%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$20.27**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.92–$29.95**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****3,795.9**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-17.2%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****82%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$29K**
$29K/yr · 6K searches
According to Flapen's Amazon United States niche tracking, vitamin k2 mk4 mk7 is a $29K/yr Amazon United States market (6K searches/yr). The top 5 brands hold 85% of demand. Verdict: Skip it — 40/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin k2 mk4 mk7 market data**
- **Units sold / yr**
- **1K–1K**
- avg 100–250/product
- **Revenue / yr**
- **$20K–$25K**
- units × avg price
- **Conversion rate**
- **22.1%**
- **Avg BSR**
- **#404**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **90%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **100 months**
- **Avg seller age**
- **177 days**
## **Competition & brand share**
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **—flat
**Sellers**
**20**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**82%**
Top 20: 100%
**Open market**
**10%**
- InnovixLabs53% - DEAL SUPPLEMENT12% - Bronson8% - NatureWise8% - Micro Ingredients5% - Life Extension4% - Open — no brand owns it (3 brands, 10%)
## **Demand & seasonality**
Weekly Amazon search volume, last 99 weeks — -17.2% search growth over the last 90 days.
200150Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/health-household/vitamin-k2-mk4-mk7/trend)
## **Top vitamin k2 mk4 mk7 products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$4K30%$9K45%$13K60%$17K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**InnovixLabs Full Spectrum Vitamin K2-90 Softgels with 600 mcg of Trans Form MK7 and MK4 - Supports General Health and Bone Strength - Soy and Gluten Free K2 Vitamin Supplement**InnovixLabs**$26.23**4.7★7,561 rev](https://www.amazon.com/dp/B00T8NROWM) [2**DEAL SUPPLEMENT Vitamin K2 Supplement 600mcg 180 Coconut Oil Softgels | Full Spectrum High Absorption MK-7 & MK-4 Forms | Bone Joint & Immune Support Non-GMO**DEAL SUPPLEMENT**$23.45**4.7★676 rev](https://www.amazon.com/dp/B0CF3N7PNY) [3![NatureWise Vitamin K2 600mcg Supplement with MK-7 100mcg & MK-4 500mcg - Enhanced Bioavailable Formula - K Complex for Bone and Heart Health - Vegan Gluten Free Non-GMO -90 Softgels[3-Month Supply]](https://m.media-amazon.com/images/I/41nl0QJ8WYL.jpg)**NatureWise Vitamin K2 600mcg Supplement with MK-7 100mcg & MK-4 500mcg - Enhanced Bioavailable Formula - K Complex for Bone and Heart Health - Vegan Gluten Free Non-GMO -90 Softgels\[3-Month Supply\]**NatureWise**$11.74**4.8★1,157 rev](https://www.amazon.com/dp/B08GL27RSG) [4**Bronson Vitamin K Triple Play (Vitamin K2 MK7 / Vitamin K2 MK4 / Vitamin K1) Full Spectrum Complex Vitamin K Supplement 90 Capsules**Bronson**$9.92**4.7★8,555 rev](https://www.amazon.com/dp/B01N6DWETQ) [5**Super Vitamin K Complex (K2 MK7 + MK4 & K1) 360 Coconut Oil Softgles | Easily Absorbed K Vitamins Active Menaquinone Complex | Non-GMO**Micro Ingredients**$24.60**4.8★444 rev](https://www.amazon.com/dp/B0C9PNMGR3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**DEAL SUPPLEMENT Vitamin K2 Supplement 600mcg 180 Coconut Oil Softgels | Full Spectrum High Absorption MK-7 & MK-4 Forms | Bone Joint & Immune Support Non-GMO**DEAL SUPPLEMENT**$23.45**676 rev2y ago](https://www.amazon.com/dp/B0CF3N7PNY) [**Super Vitamin K Complex (K2 MK7 + MK4 & K1) 360 Coconut Oil Softgles | Easily Absorbed K Vitamins Active Menaquinone Complex | Non-GMO**Micro Ingredients**$24.60**444 rev3y ago](https://www.amazon.com/dp/B0C9PNMGR3) [**NOW Foods Supplements MK-7 Plus with K1 & MK-4 Supports Bone Health* 90 Veg Capsules**NOW Foods**$20.74**113 rev3y ago](https://www.amazon.com/dp/B0BQNCR6G3) [![NatureWise Vitamin K2 600mcg Supplement with MK-7 100mcg & MK-4 500mcg - Enhanced Bioavailable Formula - K Complex for Bone and Heart Health - Vegan Gluten Free Non-GMO -90 Softgels[3-Month Supply]](https://m.media-amazon.com/images/I/41nl0QJ8WYL.jpg)**NatureWise Vitamin K2 600mcg Supplement with MK-7 100mcg & MK-4 500mcg - Enhanced Bioavailable Formula - K Complex for Bone and Heart Health - Vegan Gluten Free Non-GMO -90 Softgels\[3-Month Supply\]**NatureWise**$11.74**1,157 rev5y ago](https://www.amazon.com/dp/B08GL27RSG) [**Life Extension Super K Vitamin K Supplement 2000 Mcg Vitamin K and 1180 Mcg Vitamin K2 Heart Health Once-Daily 90 Softgels**Life Extension**$19.39**6,990 rev7y ago](https://www.amazon.com/dp/B07RL1J9BV)
**~~View all new products →~~**
### **Trending**
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**Bronson**$9.92**4.7★**▲ 93%**](https://www.amazon.com/dp/B01N6DWETQ) [**NOW Foods Supplements MK-7 Plus with K1 & MK-4 Supports Bone Health* 90 Veg Capsules**NOW Foods**$20.74**4.7★**▲ 43%**](https://www.amazon.com/dp/B0BQNCR6G3) [**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**THORNE**$29.95**4.8★**▲ 17%**](https://www.amazon.com/dp/B0797N3F9T) [**InnovixLabs Full Spectrum Vitamin K2-90 Softgels with 600 mcg of Trans Form MK7 and MK4 - Supports General Health and Bone Strength - Soy and Gluten Free K2 Vitamin Supplement**InnovixLabs**$26.23**4.7★**— 6%**](https://www.amazon.com/dp/B00T8NROWM) [**DEAL SUPPLEMENT Vitamin K2 Supplement 600mcg 180 Coconut Oil Softgels | Full Spectrum High Absorption MK-7 & MK-4 Forms | Bone Joint & Immune Support Non-GMO**DEAL SUPPLEMENT**$23.45**4.7★**— 1%**](https://www.amazon.com/dp/B0CF3N7PNY)
**~~View all trending →~~**
## **What buyers say about vitamin k2 mk4 mk7**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Vitamin**23%
*“this is a great Vitamin supplement”*
**Quality-Overall**20%
*“Love they are a well-known brand”*
**Value For Money**7%
*“Great value for price”*
**Ease Of Chewing/Swallowing**6%
*“Easy to swallow”*
**Heart Health**5%
*“Very beneficial for heart health”*
**Advertised Vs Actual Product**5%
*“Seems to be as described”*
**Nutritional Content**4%
*“Healthy and Life quality improving”*
**Calcium**4%
*“Totally satisfied taking this with my calcium”*
**Ingredients-Overall**3%
*“This formulation is unique”*
**Vegan/Organic**3%
*“Plant based complete formula”*
### **What buyers complain about **
**Vitamin**13%
*“more than 5,000 the RDA of a FAT SOLUBLE vitamin is potentially dangerous”*
**Side Effects**10%
*“had a bad feeling round my chest when I took this it went away”*
**Quality-Overall**8%
*“Need better quality control”*
**Value For Money**8%
*“Just a little more cost”*
**Dosage**6%
*“vomiting on ONE dose”*
**Allergies**5%
*“when taking it caused an allergic reaction identical to when I am exposed to fragrances”*
**Contamination**3%
*“So, there is probably some contamination and can't be advertised as GF”*
**Nutritional Content**3%
*“This is a horrible filler in ons of supplements and food”*
**Regulates Digestion**3%
*“They can affect your kidneys etc”*
**Heating Element**3%
*“this bottle suffer overheating”*
### **Top return reasons **
**Strength**67%
**Dosage**17%
**Vitamin**17%
## **Common questions**
- **Is vitamin k2 mk4 mk7 profitable to sell on Amazon United States?**
- The niche generates $29K/yr across 10 tracked products. 90-day search growth is -17.2%. Flapen's verdict: Skip it (40/100).
- **How competitive is the vitamin k2 mk4 mk7 niche?**
- 9 brands and 20 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in vitamin k2 mk4 mk7?**
- Top complaints mined from reviews: Vitamin, Side Effects, Quality-Overall. The return rate is 0.0%.
- **When does demand for vitamin k2 mk4 mk7 peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the vitamin k2 mk4 mk7 niche?**
- Listings span $9.92–$29.95; the average listing price is $20.27 (sweet spot $15–$100). The average incumbent carries 3,796 reviews — the moat a new listing must climb.
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