---
title: "Sunday Natural D3 K2 — €301K/yr Amazon DE Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/de/drogerie-koerperpflege/sunday-natural-d3-k2"
last_updated: "2026-08-06T20:56:59.473Z"
locale: en
meta:
description: "Niche score 39/100 · €301K/yr market · 173K searches/yr · €17.90 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · €301K/yr market · 173K searches/yr · €17.90 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sunday Natural D3 K2 — €301K/yr Amazon DE Niche (2026) - Flapen"
---
# **sunday natural d3 k2**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 51Growth 11Conversion 86Competition 3Returns 100Price range 74Avg price 82Brand share 0Review moat 25Quality gap 17
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****9.8%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****€17.90**
avg listing price — sweet spot $15–$100
**Price range**
**Good****€11.37–€25.10**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Good****€301K**
€301K/yr · 173K searches
**Review moat**
**Bad****4,163.33**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-28.4%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****97%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon Germany niche tracking, sunday natural d3 k2 is a €301K/yr Amazon Germany market (173K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov–Dec. Verdict: Skip it — 39/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sunday natural d3 k2 market data**
- **Units sold / yr**
- **13K–15K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **€224K–€269K**
- units × avg price
- **Conversion rate**
- **9.8%**
- **Avg BSR**
- **#19**
- **Page quality**
- **0%**
- **Prime**
- **83%**
- **Sponsored**
- **83%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
The top 5 products capture 97% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▼falling
**Sellers**
**3**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**97%**
Top 20: 100%
**Open market**
**0%**
- SUNDAY NATURAL86% - Naturkur11% - natural elements3%
## **Demand & seasonality**
Weekly Amazon search volume, last 78 weeks — -28.4% search growth over the last 90 days.
8K6KSpike '25Black Friday '25 seasonFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Oct, Nov, Dec · busiest ÷ quietest = 4.3×
[**Open Trend **](https://flapen.com/research/de/drogerie-koerperpflege/sunday-natural-d3-k2/trend)
## **Top sunday natural d3 k2 search terms**
- **sunday natural vitamin d3 k2**47K/yr+43.9%9.8% conv. - **sunday natural vitamin d**15K/yr-30.9%5.2% conv. - **sunday natural d3 k2**56K/yr-83.7%8.2% conv. - **vitamin d3 k2 sunday natural**10K/yr-28.8%8.3% conv. - **sunday natural d3 k2 mk7**10K/yr-26.9%5.5% conv. - **sunday natural vitamin d3**6K/yr-11.5%5.1% conv. - **vitamin d sunday natural**6K/yr-28.4%8.7% conv. - **sunday vitamin d3 k2**5K/yr-8.9%9.7% conv. - **sunday natural d3**4K/yr-37.7%5.5% conv. - **vitamin d3 sunday natural**4K/yr-33.7%7.4% conv. [**All search terms **](https://flapen.com/research/de/drogerie-koerperpflege/sunday-natural-d3-k2/search-terms)
## **Top sunday natural 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%15%€45K30%€90K45%€136K60%€181K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**SUNDAY NATURAL Vitamin D3 K2 Tropfen Premium Vitamin D 3 1.000 IE (25g) + K2-MK7 99 8% all-trans 20g Kölner Liste - Hohe Bioverfügbarkeit ohne unnötige Zusätze laborgeprüft**SUNDAY NATURAL**€13.71**4.8★1,032 rev](https://www.amazon.de/dp/B0FMS3FM95) [2**SUNDAY NATURAL Vitamin D3 K2 Tropfen Vitamin D 3 5.000IE (125g) + K2-MK7 99 8% + all-trans 50g Vegan Hohe Bioverfügbarkeit ohne unnötige Zusätze**SUNDAY NATURAL**€25.10**4.8★735 rev](https://www.amazon.de/dp/B0FMS3FZ56) [3**Naturkur Vitamin D3 20.000 I.E. + Vitamin K2 MK7 200 mcg - 180 Kapseln im Apothekerglas - Ohne unerwünschte Zusatzstoffe in Handarbeit hergestellt in Unterfranken**Naturkur**€19.95**4.7★81 rev](https://www.amazon.de/dp/B0F92HDP4Q) [4**SUNDAY NATURAL Vitamin D3 Tropfen 2000 IE (50 g) Sunferol D3 pro Tropfen Premium Vitamin D in MCT-Kokosöl gelöst 50 ml - laborgeprüft ohne unnötige Zusätze**SUNDAY NATURAL**€11.37**4.6★291 rev](https://www.amazon.de/dp/B0FMS3X8PG) [5**SUNDAY NATURAL Vitamin D3 K2 Tropfen - Vegan - Premium Vitamin D 3 1.000 IE (25g) + K2 MK7 99 8% all-trans 20g - Hohe Bioverfügbarkeit ohne unnötige Zusätze laborgeprüft**SUNDAY NATURAL**€15.73**4.8★735 rev](https://www.amazon.de/dp/B0FMS1F6QP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SUNDAY NATURAL Vitamin D3 K2 Tropfen - Vegan - Premium Vitamin D 3 1.000 IE (25g) + K2 MK7 99 8% all-trans 20g - Hohe Bioverfügbarkeit ohne unnötige Zusätze laborgeprüft**SUNDAY NATURAL**€15.73**735 rev8mo ago](https://www.amazon.de/dp/B0FMS1F6QP) [**SUNDAY NATURAL Vitamin D3 K2 Tropfen Premium Vitamin D 3 1.000 IE (25g) + K2-MK7 99 8% all-trans 20g Kölner Liste - Hohe Bioverfügbarkeit ohne unnötige Zusätze laborgeprüft**SUNDAY NATURAL**€13.71**1,032 rev8mo ago](https://www.amazon.de/dp/B0FMS3FM95) [**SUNDAY NATURAL Vitamin D3 Tropfen 2000 IE (50 g) Sunferol D3 pro Tropfen Premium Vitamin D in MCT-Kokosöl gelöst 50 ml - laborgeprüft ohne unnötige Zusätze**SUNDAY NATURAL**€11.37**291 rev8mo ago](https://www.amazon.de/dp/B0FMS3X8PG) [**SUNDAY NATURAL Vitamin D3 K2 Tropfen Vitamin D 3 5.000IE (125g) + K2-MK7 99 8% + all-trans 50g Vegan Hohe Bioverfügbarkeit ohne unnötige Zusätze**SUNDAY NATURAL**€25.10**735 rev10mo ago](https://www.amazon.de/dp/B0FMS3FZ56) [**Naturkur Vitamin D3 20.000 I.E. + Vitamin K2 MK7 200 mcg - 180 Kapseln im Apothekerglas - Ohne unerwünschte Zusatzstoffe in Handarbeit hergestellt in Unterfranken**Naturkur**€19.95**81 rev1y ago](https://www.amazon.de/dp/B0F92HDP4Q)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Naturkur Vitamin D3 20.000 I.E. + Vitamin K2 MK7 200 mcg - 180 Kapseln im Apothekerglas - Ohne unerwünschte Zusatzstoffe in Handarbeit hergestellt in Unterfranken**Naturkur**€19.95**4.7★**▲ 81%**](https://www.amazon.de/dp/B0F92HDP4Q) [**SUNDAY NATURAL Vitamin D3 K2 Tropfen Premium Vitamin D 3 1.000 IE (25g) + K2-MK7 99 8% all-trans 20g Kölner Liste - Hohe Bioverfügbarkeit ohne unnötige Zusätze laborgeprüft**SUNDAY NATURAL**€13.71**4.8★**▲ 16%**](https://www.amazon.de/dp/B0FMS3FM95) [**SUNDAY NATURAL Vitamin D3 Tropfen 2000 IE (50 g) Sunferol D3 pro Tropfen Premium Vitamin D in MCT-Kokosöl gelöst 50 ml - laborgeprüft ohne unnötige Zusätze**SUNDAY NATURAL**€11.37**4.6★**▲ 16%**](https://www.amazon.de/dp/B0FMS3X8PG) [**SUNDAY NATURAL Vitamin D3 K2 Tropfen Vitamin D 3 5.000IE (125g) + K2-MK7 99 8% + all-trans 50g Vegan Hohe Bioverfügbarkeit ohne unnötige Zusätze**SUNDAY NATURAL**€25.10**4.8★**— 6%**](https://www.amazon.de/dp/B0FMS3FZ56) [**natural elements Vitamin D3 + K2 Depot 180 Tabletten Premium-Qualität: K2VITAL von Kappa 99 7+% All-Trans K2-MK7 + 5000 IE Vitamin D3 hochdosiert ohne Zusätze laborgeprüfte Qualität**natural elements**€21.55**4.7★**▼ 50%**](https://www.amazon.de/dp/B01M36DP4F)
**~~View all trending →~~**
## **What buyers say about sunday natural d3 k2**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Qualität insgesamt**28%
*“Super Produkt”*
**Vitamin**16%
*“Vitamin”*
**Dosierung**12%
*“Es sind noch viele Tabletten in der Dose”*
**Preis-Leistungs-Verhältnis**6%
*“Super Preis/Leistung”*
**Benutzerfreundlichkeit**6%
*“Beste Handhabung schnell und einfach”*
**beworben Vs Tatsächliches Produkt**4%
*“Das Produkt entspricht genau der Beschreibung”*
**Geschmack insgesamt**3%
*“Schmeckt neutral”*
**Gesamtgröße**2%
*“Passt”*
**Zufriedenheit/Vergnügen**2%
*“Gut zufrieden”*
**Geschmack**2%
*“Geschmacklich gut”*
### **What buyers complain about **
**Vitamin**13%
*“Vitamin d3 k2 tropfen”*
**Dosierung**8%
*“1 Tropfen am Tag”*
**Preis-Leistungs-Verhältnis**7%
*“Nur doppelt so teuer”*
**Haltbarkeit**6%
*“fragwürdige Haltbarkeitsangabe”*
**Auslaufsicher**5%
*“Schraubverschluss leider undicht”*
**Geschmack insgesamt**5%
*“Die Tropfen,sind geschmacksneutral”*
**Funktionalität insgesamt**4%
*“Wirken tut da nix”*
**beworben Vs Tatsächliches Produkt**4%
*“Und in den anderen Feedbacks sehe ich es auch nicht wo ein foto dabei ist”*
**Messung / Ablesegenauigkeit**3%
*“Das beeinträchtigt die Genauigkeit der Pipette”*
**Qualität insgesamt**3%
*“Aufgekaufte Firma, schlechte Qualität”*
## **Common questions**
- **Is sunday natural d3 k2 profitable to sell on Amazon Germany?**
- The niche generates €301K/yr across 6 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -28.4%. Flapen's verdict: Skip it (39/100).
- **How competitive is the sunday natural d3 k2 niche?**
- 3 brands and 3 sellers compete. The top 5 products take 97% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in sunday natural d3 k2?**
- Top complaints mined from reviews: Vitamin, Dosierung, Preis-Leistungs-Verhältnis. The return rate is 0.1%.
- **When does demand for sunday natural d3 k2 peak?**
- Demand peaks in Oct–Nov–Dec; the busiest month runs 4.3× the quietest.
- **What does it cost to enter the sunday natural d3 k2 niche?**
- Listings span €11.37–€25.10; the average listing price is €17.90 (sweet spot $15–$100). The average incumbent carries 4,163 reviews — the moat a new listing must climb.
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