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45

selen

Skip it

A concentrated shelf (top 5 take 82% of clicks) — this niche doesn't clear our bar today.

Market size 70Growth 17Conversion 96Competition 15Returns 100Price range 18Avg price 37Brand share 32Review moat 37Quality gap 28

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible13.7%

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

Market size

Good€737K

€737K/yr · 518K searches

Review moat

Okay2,842.83

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay€10.39

avg listing price — sweet spot $15–$100

Brand share

Okay86%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Price range

Bad€6.28–€16.90

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

Growth

Bad-16.9%

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

Competition

Bad82%

top-5 click share — a locked-up shelf

According to Flapen's Amazon Germany niche tracking, selen is a €737K/yr Amazon Germany market (518K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 45/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

selen market data

Units sold / yr
60K–80K
avg 6,000–8,000/product
Revenue / yr
€623K–€831K
units × avg price
Conversion rate
13.7%
Avg BSR
#10
Page quality
0%
Prime
100%
Sponsored
92%
Out of stock
0.0%
Avg brand age
67 months
Avg seller age
185 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

11 rising

Sellers

9

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

11%

  • natural elements36%
  • ProFuel24%
  • Feel Natural15%
  • Nature Love7%
  • NATURTREU4%
  • GREEN NATURALS3%
  • Open — no brand owns it (5 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.9% search growth over the last 90 days.
13K8KPrime Day '24Spike '24Prime Day '25Spike '25Black Friday '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Top selen search terms

  • selen254K/yr
  • selen hochdosiert81K/yr
  • seelen67K/yr
  • selen 200g37K/yr
  • selen komplex23K/yr
  • selenium19K/yr
  • selen tabletten8K/yr
  • sunday natural selen5K/yr
  • selen kapseln6K/yr
  • selen sunday natural3K/yr
All search terms

Top selen 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%10%€74K20%€147K30%€221K40%€295K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 12 tracked products in this niche — three views at once, no toggling.

What buyers say about selen

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

What buyers love

Qualität insgesamt22%

“Super Produkt”

Preis-Leistungs-Verhältnis9%

“Preis stimmt”

Einfaches Kauen/Schlucken7%

“Tabletten sind gut zu schlucken”

Benutzerfreundlichkeit6%

“Einfach”

Dosierung5%

“200mg ist eine ordentliche Dosierung”

beworben Vs Tatsächliches Produkt5%

“hält was es verspricht”

Vitamin4%

“Super Supplements”

Ernährungs Gehalt3%

“Gute Nahrungsergänzung und kam schnell”

Inhaltsstoffe – insgesamt3%

“Das Produkt mit den kleinen Tabletten ist optimal”

Reguliert die Verdauung3%

“Unterstützt die Schilddrüse”

What buyers complain about

Geruch28%

“Stinken ekelhaft”

Dosierung11%

“Hochdosiertes Nahrungsergänzungsmittel”

Funktionalität insgesamt4%

“Null Wirkung”

Inhaltsstoffe – insgesamt4%

“Schädlicher Füllstoff enthalten”

Nebenwirkungen4%

“keine Wirkung und Magenprobleme”

Gesamtgröße3%

“Die Tabletten sind relativ klein”

Qualität insgesamt3%

“Günstiges Produkt”

Allergien2%

“Sobald ich diese einnehme krieg ich unfassbar schlechte Haut”

Magnesium2%

“Der Verdacht lag erstmal bei Magnesium”

Salzgehalt2%

“Magnesiumsalze der Speisefettsäuren”

Common questions

Is selen profitable to sell on Amazon Germany?
The niche generates €737K/yr across 12 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -16.9%. Flapen's verdict: Skip it (45/100).
How competitive is the selen niche?
11 brands and 9 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 86% of demand.
What do buyers complain about in selen?
Top complaints mined from reviews: Geruch, Dosierung, Funktionalität insgesamt. The return rate is 0.1%.
When does demand for selen peak?
Demand is steady year-round — the busiest month runs 1.3× the quietest.
What does it cost to enter the selen niche?
Listings span €6.28–€16.90; the average listing price is €10.39 (sweet spot $15–$100). The average incumbent carries 2,843 reviews — the moat a new listing must climb.