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vitamin d3 + k2

Skip it

A small market ($23K/yr) — this niche doesn't clear our bar today.

Market size 6Growth 22Conversion 67Competition 34Returns 100Price range 92Avg price 95Brand share 42Review moat 22Quality gap 16

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Avg price

Incredible$38.64

avg listing price — sweet spot $15–$100

Price range

Great$12.62–$70.89

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

Conversion

Good6.0%

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

Brand share

Okay80%

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

Competition

Okay65%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-5.4%

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

Review moat

Bad9,480.94

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$23K

$23K/yr · 10K searches

According to Flapen's Amazon Singapore niche tracking, vitamin d3 + k2 is a $23K/yr Amazon Singapore market (10K searches/yr). The top 5 brands hold 80% of demand. Verdict: Skip it — 42/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

vitamin d3 + k2 market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
$19K–$29K
units × avg price
Conversion rate
6.0%
Avg BSR
#200
Page quality
0%
Prime
71%
Sponsored
29%
Out of stock
1.0%
Avg brand age
87 months
Avg seller age
0 days

Competition & brand share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

10 falling

Sellers

31

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

65%

Top 20: 100%

Open market

15%

  • Now Foods50%
  • Horbäach11%
  • Nature Made7%
  • Nano Singapore6%
  • Dr. Berg Nutritionals6%
  • Bronson6%
  • Open — no brand owns it (4 brands, 15%)

Demand

Weekly Amazon search volume, last 46 weeks — -5.4% search growth over the last 90 days.
350250Spike '25Black Friday '25Spike '26Sep '25Oct '25Dec '25Feb '26Mar '26May '26Jun '26

Top vitamin d3 + k2 search terms

  • d3 k24K/yr
  • vitamin d3 + k24K/yr
  • vitamin d3 k22K/yr
  • d3 k2 vitamin125/yr
All search terms

Top vitamin d3 + k2 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%10%$2K20%$5K30%$7K40%$9K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 17 tracked products in this niche — three views at once, no toggling.

What buyers say about vitamin d3 + k2

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

Top return reasons

Dosage33%
Advertised Vs Actual Product33%
Value For Money33%

Common questions

Is vitamin d3 + k2 profitable to sell on Amazon Singapore?
The niche generates $23K/yr across 17 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -5.4%. Flapen's verdict: Skip it (42/100).
How competitive is the vitamin d3 + k2 niche?
10 brands and 31 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 80% of demand.
What does it cost to enter the vitamin d3 + k2 niche?
Listings span $12.62–$70.89; the average listing price is $38.64 (sweet spot $15–$100). The average incumbent carries 9,481 reviews — the moat a new listing must climb.