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vitamin d 1000

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Prices mostly outside the sweet spot ($3.17–$13.71) — this niche doesn't clear our bar today.

Market size 25Growth 7Conversion 98Competition 14Returns 100Price range 0Avg price 26Brand share 35Review moat 45Quality gap 21

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Conversion

Incredible16.4%

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

Review moat

Okay2,047.33

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay84%

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

Avg price

Okay€9.08

avg listing price — sweet spot $15–$100

Market size

Bad€98K

€98K/yr · 66K searches

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad84%

top-5 click share — a locked-up shelf

Growth

Bad-36.7%

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

Price range

Bad€3.17–€13.71

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

Competition

The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

31

Top-5 brand share

84%

Open market

10%

  • natural elements38%
  • Sanhelios18%
  • Merck Selbstmedikation GmbH10%
  • ProFuel9%
  • Doppelherz8%
  • Bloom Naturals Beauty Supplements6%
  • Open — no brand owns it (3 brands, 10%)

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%10%€10K20%€20K30%€29K40%€39K1001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 9 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -36.7% search growth over the last 90 days.
5K3KSpike '24Black Friday '24Prime Day '25Spike '25SepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Oct, Nov, Dec · busiest ÷ quietest = 4.6×

Reviews

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

What buyers love

Qualität insgesamt23%

“Super Produkt”

Vitamin18%

“Vitamin”

Dosierung11%

“Super Qualität und Preis Leistung, durch die 1000 i. E. super zu dosieren, entweder nimmt man mehr oder weniger”

Preis-Leistungs-Verhältnis9%

“Super Preis/Leistung”

Benutzerfreundlichkeit6%

“Beste Handhabung schnell und einfach”

beworben Vs Tatsächliches Produkt5%

“Wie bestellt”

Gesamtgröße5%

“Passt”

Einfaches Kauen/Schlucken4%

“gut zum schlucken”

Geschmack insgesamt3%

“schmeckt neutral”

Zufriedenheit/Vergnügen1%

“Gut zufrieden”

What buyers complain about

Vitamin15%

“Vitamin D ist eigentlich keine reguläre Vitamine”

Dosierung10%

“1 Tropfen am Tag”

Auslaufsicher7%

“Schraubverschluss leider undicht”

Geschmack insgesamt6%

“Die Tropfen,sind geschmacksneutral”

Einfaches Kauen/Schlucken4%

“Tabletten schlucken nervt”

Funktionalität insgesamt4%

“Wirken tut da nix”

Säureregulator/Linderung von Magenschmerzen4%

“Haben in der 1 Woche der Einnahme Magenschmerzen verursacht”

Schmierung4%

“das Öl läuft aus.”

Messung / Ablesegenauigkeit4%

“Das beeinträchtigt die Genauigkeit der Pipette”

Gesamtgröße4%

“Dose ist kleiner als auf dem Bild”

Top return reasons

Vitamin100%