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56

vitamin k1

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 30Growth 23Conversion 84Competition 56Returns 100Price range 82Avg price 91Brand share 82Review moat 48Quality gap 23

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Avg price

Great$21.55

avg listing price — sweet spot $15–$100

Conversion

Great9.4%

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

Brand share

Great53%

top-5 brand share — no brand owns this niche

Price range

Great$4.58–$68.73

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

Competition

Good52%

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

Review moat

Okay1,691.07

avg incumbent reviews — the moat a new listing must climb

Market size

Okay$132K

$132K/yr · 65K searches

Growth

Bad-3.8%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Competition

The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.

Brands

23 falling

Sellers

559

Top-5 brand share

53%

Open market

40%

  • BlueBonnet12%
  • Vet One12%
  • BioTechUSA11%
  • Superior Source8%
  • Puritan's Pride8%
  • Bronson8%

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$5K8%$11K12%$16K16%$21K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 28 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.8% search growth over the last 90 days.
5K3KSpike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 3.3×