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55

vitamin k2

Worth a look

Shows low returns (0.1%), but soft demand (-24.5% this quarter) keeps it on the watch list.

Market size 69Growth 13Conversion 86Competition 41Returns 100Price range 81Avg price 81Brand share 64Review moat 36Quality gap 19

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Conversion

Great9.7%

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

Avg price

Great€17.34

avg listing price — sweet spot $15–$100

Price range

Great€9.77–€38.64

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

Market size

Good€703K

€703K/yr · 417K searches

Brand share

Good67%

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

Competition

Okay60%

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

Review moat

Okay2,935.9

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-24.5%

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

Competition

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 flat

Sellers

31

Top-5 brand share

67%

Open market

28%

  • WeightWorld20%
  • ProFuel17%
  • Nature Love11%
  • natural elements10%
  • BANDINI8%
  • Horbäach5%

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%5%€35K10%€70K15%€105K20%€141K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 20 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -24.5% search growth over the last 90 days.
10K6KPrime Day '24Spike '24Holiday '24Prime Day '25Spike '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Reviews

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

What buyers love

Qualität insgesamt21%

“Super Produkt”

Vitamin16%

“Bestes Vitamin k2”

Preis-Leistungs-Verhältnis10%

“Super Preis/Leistung”

Dosierung10%

“Super Dosierung”

beworben Vs Tatsächliches Produkt5%

“Artikel wie beschrieben, alles bestens”

Benutzerfreundlichkeit5%

“Beste Handhabung schnell und einfach”

Einfaches Kauen/Schlucken4%

“sich super schlucken”

Gesamtgröße4%

“Passt”

Vegan/Biologisch2%

“vegan”

Inhaltsstoffe – insgesamt2%

“Ich nehme die Tablette morgens zusammen mit meinem High-Polyphenol-Olivenöl – das funktioniert für mich super”

What buyers complain about

Dosierung21%

“unnötig hoch dosiert”

Vitamin9%

“Vitamin D3k2”

Geschmack insgesamt4%

“Tropfen schmeckten Ranzig”

Preis-Leistungs-Verhältnis4%

“knackiger Preis”

Funktionalität insgesamt4%

“Wirken tut da nix”

Qualität insgesamt4%

“Nicht optimal”

Auslaufsicher3%

“Schraubverschluss leider undicht”

Messung / Ablesegenauigkeit2%

“Das beeinträchtigt die Genauigkeit der Pipette”

Säureregulator/Linderung von Magenschmerzen2%

“Haben in der 1 Woche der Einnahme Magenschmerzen verursacht”

Inhaltsstoffe – insgesamt2%

“Deshalb kein Vertrauen in die Inhaltsstoffe”