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Vitamin D Test

Vitamin D Test shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Flapen Score

59
Worth a look

Top 10% of 2,966 Drogerie & Körperpflege niches · +10 vs the category median of 49

Market size 42Growth 0Conversion 72Competition 52Returns 99Price range 77Avg price 81Brand share 62Review moat 91Quality gap 95
This niche Category average · 2,966 niches

Is Vitamin D Test profitable on Amazon?

According to Flapen's Amazon Germany niche tracking, Vitamin D Test is a €218K/yr Amazon Germany market (187K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Jan–Feb–Oct–Nov. Verdict: Worth a look — 59/100.

Vitamin D Test: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -54.6% over the last 90 days and 6.7% of searches end in a purchase.

€218K

revenue / yr

Units sold / yr15K
Search volume / yr-54.6%187K
Conversion rate6.7%
Avg price€17.38

Who owns the niche?

The top 5 brands hold 68% of demand, so 32% of the market is open.

32%

open market share

Brands · sellers11 · 15
Top-5 product click share54%
Open market32%
Avg brand age56 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.0★ — the gap to enter on.

0/100

page quality · 13 products

Sponsored placement85%
New entrants (1y)4· 1 succeeded
Avg rating4.0★
Avg reviews189

Top Vitamin D Test products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

€0€11K€22K€33K€44K1101001K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 rising

Sellers

15

Top-5 brand share

68%

Top 20: 100%

Top-5 click share

54%

Top 20: 100%

Open market

24%

  • CERASCREEN25%
  • One Step16%
  • AssuTest11%
  • NanoRepro8%
  • Homehulab8%
  • HIXO8%

Vitamin D Test demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume187KCVR6.7%Products13Brands11Top 5 Brands68%OOS Rate7.2%Rating4.0★Reviews189Avg BSR#133
8K6KSpike '24Black Friday '24Spike '25Spike '26SepDecMarJunAugNovMarMay

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

Top Vitamin D Test search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • vitamin d test72K/yr
  • vitamin d test für zuhause45K/yr
  • vitamin d3 test für zuhause13K/yr
  • vitamin d3 test11K/yr
  • vitamin d selbsttest testsieger5K/yr
  • vitamin d test für zuhause mit wert8K/yr
  • vitamin d selbsttest11K/yr
  • vitamin d schnelltest6K/yr
  • selbsttest vitamin d6K/yr
  • d3 test3K/yr

What reviews say buyers love and hate about Vitamin D Test

What buyers mention most, as a share of all reviews.

What buyers love

84% of reviews
Benutzerfreundlichkeit33%

Der Test geht ganz einfach: man desinfiziert eine Fingerkuppe, pickst hinein, fängt Blut auf und gibt es in die Pufferlösung und gibt es auf die Testkasette

Anleitung/Benutzerhandbuch/Fehlerbehebung12%

eine umfassende, gut verständliche Gebrauchsanweisung.

Vitamin11%

Vitamin D Test --super

Genauigkeit insgesamt9%

Reliable Result

Preis-Leistungs-Verhältnis7%

Preislich noch in Ordnung

What buyers complain about

64% of reviews
Genauigkeit insgesamt23%

Unsicher

Messung / Ablesegenauigkeit8%

Ungenau

Preis-Leistungs-Verhältnis5%

Rausgeworfenes Geld

Funktionalität insgesamt5%

Lanzette funktioniert nicht

Benutzerfreundlichkeit5%

Unbrauchbar

Vitamin D Test return rate & reasons

Why buyers send it back, as a share of all return requests.

0.1%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1Funktionalität insgesamt
38%
2Genauigkeit insgesamt
36%
3beworben Vs Tatsächliches Produkt
7%
4Vitamin
5%
5Sichtweite
3%

Common Vitamin D Test questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Vitamin D Test 59/100 on Amazon Germany — Worth a look. The niche generates €218K/yr across 13 tracked products. 1 of 4 products launched in the last 360 days are still selling. Search demand moved -54.6% over the last 90 days.
Search demand for Vitamin D Test on Amazon Germany peaks in Jan–Feb–Oct–Nov, where the busiest month runs 3.0× the quietest.