Is vitamin k drops profitable to sell on Amazon United States?

The niche generates $156K/yr across 5 tracked products. 90-day search growth is -0.5%. Flapen's verdict: Skip it (43/100).

How competitive is the vitamin k drops niche?

5 brands and 8 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in vitamin k drops?

Top complaints mined from reviews: Leak-Proof, Ethical Trade/Fair Trade, Value For Money. The return rate is 0.0%.

When does demand for vitamin k drops peak?

Demand peaks in Jan–Feb; the busiest month runs 3.0× the quietest.

What does it cost to enter the vitamin k drops niche?

Listings span $19.43–$38.87; the average listing price is $29.04 (sweet spot $15–$100). The average incumbent carries 550 reviews — the moat a new listing must climb.

vitamin k drops

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Avg price

Incredible$29.04

avg listing price — sweet spot $15–$100

Price range

Incredible$19.43–$38.87

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great9.2%

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

Review moat

Good550.2

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$156K

$156K/yr · 59K searches

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-0.5%

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

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, vitamin k drops is a $156K/yr Amazon United States market (59K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 43/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

vitamin k drops market data

Units sold / yr: 4K–5K; avg 500–750/product
Revenue / yr: $116K–$145K; units × avg price
Conversion rate: 9.2%
Avg BSR: #55
Page quality: 0%
Prime: 100%
Sponsored: 80%
Out of stock: 0.0%
Avg brand age: 74 months
Avg seller age: 171 days

Competition & brand share

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

5 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

100%

Top 20: 100%

Open market

Dr. Green Mom55%
BIOTICS RESEARCH30%
Live Wise Naturals8%
Legendairy Milk4%
HoneyCombs3%

Demand & seasonality

Weekly Amazon search volume, last 100 weeks — -0.5% search growth over the last 90 days.

Peak months: Jan, Feb · busiest ÷ quietest = 3.0×

Open Trend

Top vitamin k drops search terms

vitamin k drops newborn21K/yr -2.8%7.4% conv.
vitamin k drops10K/yr +13.9%4.9% conv.
oral vitamin k for newborns10K/yr -6.3%7.2% conv.
vitamin k drops for infants3K/yr +28.1%5.1% conv.
bio k mulsion vitamin k drops newborn5K/yr -11.4%15.0% conv.
infant vitamin k drops3K/yr +27.1%6.8% conv.
vitamin k for newborns3K/yr -15.5%5.6% conv.
organic vitamin k drops newborn3K/yr -12.3%5.2% conv.
bio k mulsion2K/yr -24.3%12.4% conv.

All search terms

Top vitamin k drops 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 5 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Dr. Green Mom Natal K Oral Vitamin K1 Drops for Newborns | Organic Phytonadione in MCT Oil | Natural VIT K for Babies to Support Blood Clotting

Dr. Green Mom$38.874.7★182 rev

BIOTICS RESEARCH Bio K Mulsion Liquid Vitamin K Drops - 500 mcg/S - Vitamin K1 phytonadione for Adults - VIT K Supplement - Strong Bones Heart Health Blood Clotting Support 1 fl oz

BIOTICS RESEARCH$33.554.8★943 rev

Live Wise Naturals Organic Vitamin D3 K2 Liquid Drops for Babies (MK-7)

Live Wise Naturals$24.524.8★737 rev

Legendairy Milk Organic Baby Vitamin D3 K2 Liquid Drops 400 IU 90 Servings

Legendairy Milk$19.434.2★297 rev

Vitamin K1 Liquid Drops 1 oz

HoneyCombs$28.864.4★592 rev

Newest

by launch date

Dr. Green Mom Natal K Oral Vitamin K1 Drops for Newborns | Organic Phytonadione in MCT Oil | Natural VIT K for Babies to Support Blood Clotting

Dr. Green Mom$38.87182 rev

1y ago

Legendairy Milk Organic Baby Vitamin D3 K2 Liquid Drops 400 IU 90 Servings

Legendairy Milk$19.43297 rev

3y ago

Live Wise Naturals Organic Vitamin D3 K2 Liquid Drops for Babies (MK-7)

Live Wise Naturals$24.52737 rev

7y ago

BIOTICS RESEARCH Bio K Mulsion Liquid Vitamin K Drops - 500 mcg/S - Vitamin K1 phytonadione for Adults - VIT K Supplement - Strong Bones Heart Health Blood Clotting Support 1 fl oz

BIOTICS RESEARCH$33.55943 rev

12y ago

Vitamin K1 Liquid Drops 1 oz

HoneyCombs$28.86592 rev

22y ago

What buyers say about vitamin k drops

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

What buyers love

Vitamin24%

“Awesome vitamins”

Quality-Overall16%

“Good quality”

Ease Of Use12%

“Easy to use”

Ease Of Cleaning4%

“Its nice to have a clean”

Vegan/Organic4%

“I really like that theyre organic, vegan, and have clean ingredients”

Dosage4%

“With up to 90 servings, it offers great value and is pediatrician recommended”

Efficiency4%

“Works good”

Value For Money3%

“Great value for money”

Taste-Overall3%

“The taste is mild”

Ease Of Chewing/Swallowing3%

“It was easy to administer the drops before a bottle or breastfeeding session without our little one protesting too much up through 12 weeks”

What buyers complain about

Leak-Proof19%

“Over half of the contents leaked out”

Ethical Trade/Fair Trade12%

“Dishonest”

Value For Money10%

“way too expensive”

Ease Of Use10%

“it took some time to run down to the top indicating that the bottle was almost empty”

Taste-Overall8%

“the kiddos dont even taste it”

Vitamin6%

“No vitamin k shot needed”

Dosage6%

“Few drops for $19 does not worth it”

Advertised Vs Actual Product6%

“even though listing said in stock”

Stress/Anxiety3%

“I could not handle the anxiety of redosing every time”

Contamination3%

“thats unacceptable because at any point this could've been contaminated”

Top return reasons

Certifications100%

Common questions

Is vitamin k drops profitable to sell on Amazon United States?: The niche generates $156K/yr across 5 tracked products. 90-day search growth is -0.5%. Flapen's verdict: Skip it (43/100).
How competitive is the vitamin k drops niche?: 5 brands and 8 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in vitamin k drops?: Top complaints mined from reviews: Leak-Proof, Ethical Trade/Fair Trade, Value For Money. The return rate is 0.0%.
When does demand for vitamin k drops peak?: Demand peaks in Jan–Feb; the busiest month runs 3.0× the quietest.
What does it cost to enter the vitamin k drops niche?: Listings span $19.43–$38.87; the average listing price is $29.04 (sweet spot $15–$100). The average incumbent carries 550 reviews — the moat a new listing must climb.