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.

vitamin k2 mk4 mk7

Skip it

A small market ($29K/yr) — this niche doesn't clear our bar today.

Conversion

Incredible22.1%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.0%

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

Okay85%

top-5 brand share — brands hold most of the demand

Review moat

Okay3,795.9

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-17.2%

90-day search growth — must beat 0% to launch

Competition

Bad82%

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

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

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.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open 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.

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

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$26.234.7★7,561 rev

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$23.454.7★676 rev

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$11.744.8★1,157 rev

Bronson Vitamin K Triple Play (Vitamin K2 MK7 / Vitamin K2 MK4 / Vitamin K1) Full Spectrum Complex Vitamin K Supplement 90 Capsules

Bronson$9.924.7★8,555 rev

Super Vitamin K Complex (K2 MK7 + MK4 & K1) 360 Coconut Oil Softgles | Easily Absorbed K Vitamins Active Menaquinone Complex | Non-GMO

Micro Ingredients$24.604.8★444 rev

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$23.45676 rev

2y ago

Super Vitamin K Complex (K2 MK7 + MK4 & K1) 360 Coconut Oil Softgles | Easily Absorbed K Vitamins Active Menaquinone Complex | Non-GMO

Micro Ingredients$24.60444 rev

3y ago

NOW Foods Supplements MK-7 Plus with K1 & MK-4 Supports Bone Health* 90 Veg Capsules

NOW Foods$20.74113 rev

3y ago

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$11.741,157 rev

5y ago

Life Extension Super K Vitamin K Supplement 2000 Mcg Vitamin K and 1180 Mcg Vitamin K2 Heart Health Once-Daily 90 Softgels

Life Extension$19.396,990 rev

7y ago

What buyers say about vitamin k2 mk4 mk7

What buyers praise and complain about, mined from review topics.

What buyers love

Vitamin23%

“this is a great Vitamin supplement”

Quality-Overall20%

“Love they are a well-known brand”

Value For Money7%

“Great value for price”

Ease Of Chewing/Swallowing6%

“Easy to swallow”

Heart Health5%

“Very beneficial for heart health”

Advertised Vs Actual Product5%

“Seems to be as described”

Nutritional Content4%

“Healthy and Life quality improving”

Calcium4%

“Totally satisfied taking this with my calcium”

Ingredients-Overall3%

“This formulation is unique”

Vegan/Organic3%

“Plant based complete formula”

What buyers complain about

Vitamin13%

“more than 5,000 the RDA of a FAT SOLUBLE vitamin is potentially dangerous”

Side Effects10%

“had a bad feeling round my chest when I took this it went away”

Quality-Overall8%

“Need better quality control”

Value For Money8%

“Just a little more cost”

Dosage6%

“vomiting on ONE dose”

Allergies5%

“when taking it caused an allergic reaction identical to when I am exposed to fragrances”

Contamination3%

“So, there is probably some contamination and can't be advertised as GF”

Nutritional Content3%

“This is a horrible filler in ons of supplements and food”

Regulates Digestion3%

“They can affect your kidneys etc”

Heating Element3%

“this bottle suffer overheating”

Top return reasons

Strength67%

Dosage17%

Vitamin17%

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.