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isdin si-nails

Worth a look

Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 20Growth 88Conversion 96Competition 23Returns 99Price range 66Avg price 84Brand share 21Review moat 41Quality gap 88

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Conversion

Incredible13.0%

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

Growth

Great+92.6%

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

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Avg price

Great€18.60

avg listing price — sweet spot $15–$100

Price range

Good€7.08–€30.31

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

Review moat

Okay2,420.46

avg incumbent reviews — the moat a new listing must climb

Competition

Bad72%

top-5 click share — a locked-up shelf

Brand share

Bad91%

top-5 brand share — brand-locked demand

Market size

Bad€79K

€79K/yr · 33K searches

According to Flapen's Amazon Germany niche tracking, isdin si-nails is a €79K/yr Amazon Germany market (33K searches/yr). The top 5 brands hold 91% of demand. Verdict: Worth a look — 60/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

isdin si-nails market data

Units sold / yr
3K–3K
avg 250–500/product
Revenue / yr
€47K–€56K
units × avg price
Conversion rate
13.0%
Avg BSR
#47
Page quality
0%
Prime
85%
Sponsored
77%
Out of stock
0.0%
Avg brand age
36 months
Avg seller age
198 days

Competition & brand share

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 rising

Sellers

43

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

72%

Top 20: 100%

Open market

6%

  • ISDIN54%
  • HealthRoutine19%
  • PODERM7%
  • bedrop6%
  • COSEN6%
  • Rosmalin2%
  • Open — no brand owns it (3 brands, 6%)

Demand

Weekly Amazon search volume, last 11 weeks — +92.6% search growth over the last 90 days.
900700May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26Jul '26

Top isdin si-nails search terms

  • isdin si-nails10K/yr
  • si nails nagelpilz stift3K/yr
  • isdin nagelpilz5K/yr
  • si nails nagelpilz6K/yr
  • isdin nagelpilz stift5K/yr
  • si nails2K/yr
  • isdin si-nails micoxpert gegen nagelpilz3K/yr
All search terms

Top isdin si-nails 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%€8K20%€16K30%€24K40%€32K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about isdin si-nails

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

What buyers love

Qualität insgesamt23%

“Bestes Produkt”

Benutzerfreundlichkeit13%

“handhabung prima,”

beworben Vs Tatsächliches Produkt10%

“Scheint zu wirken”

Symptomreduktion10%

“Man sieht und spürt eine deutliche Besserung”

Effizienz7%

“Hat funktioniert”

Einfache Anwendung7%

“Aber ist mit Pinsel leicht aufzutragen”

Geruch5%

“Super Duft”

Preis-Leistungs-Verhältnis4%

“sparsam im Verbrauch.”

Komfort insgesamt2%

“angenehm zu verwenden.”

Feucht/Trocken2%

“Super für trockene Nägel”

What buyers complain about

Funktionalität insgesamt31%

“Null Veränderung”

Symptomreduktion14%

“Bis jetzt noch keine Besserung”

Preis-Leistungs-Verhältnis12%

“totale Geld Verschwendung”

beworben Vs Tatsächliches Produkt4%

“Hält nicht was es verspricht”

Anleitung/Benutzerhandbuch/Fehlerbehebung4%

“Keine Gebrausanweisung”

Qualität insgesamt3%

“Günstiges Produkt”

Benutzerfreundlichkeit2%

“Allerdings ist die Anwendung etwas umständlich”

Gesamtgröße2%

“Klein und praktisch noch nicht getestet”

Haltbarkeit2%

“Stift war schon nach 10 Anwendungen leer”

Inhaltsstoffe – insgesamt2%

“Die Inhaltsstoffe erklären sich von selbst”

Top return reasons

Funktionalität insgesamt40%
beworben Vs Tatsächliches Produkt9%
Auslaufsicher9%
Defekt Material/Teile8%
Qualität insgesamt5%
Geruch3%
Produktzustand2%
Benutzerfreundlichkeit2%
Preis-Leistungs-Verhältnis2%
Ölig/fettig2%

Common questions

Is isdin si-nails profitable to sell on Amazon Germany?
The niche generates €79K/yr across 13 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is +92.6%. Flapen's verdict: Worth a look (60/100).
How competitive is the isdin si-nails niche?
9 brands and 43 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in isdin si-nails?
Top complaints mined from reviews: Funktionalität insgesamt, Symptomreduktion, Preis-Leistungs-Verhältnis. The return rate is 0.3%.
What does it cost to enter the isdin si-nails niche?
Listings span €7.08–€30.31; the average listing price is €18.60 (sweet spot $15–$100). The average incumbent carries 2,420 reviews — the moat a new listing must climb.