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58

marine collagen

Worth a look

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

Market size 34Growth 17Conversion 56Competition 71Returns 100Price range 84Avg price 95Brand share 79Review moat 38Quality gap 50

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Avg price

Incredible€24.35

avg listing price — sweet spot $15–$100

Price range

Great€10.13–€44.34

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

Brand share

Great56%

top-5 brand share — no brand owns this niche

Competition

Good42%

top-5 click share — leaders hold, buyers still browse

Conversion

Good4.7%

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

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,699.11

avg incumbent reviews — the moat a new listing must climb

Market size

Okay€161K

€161K/yr · 141K searches

Growth

Bad-16.7%

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

Competition

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

Brands

28 rising

Sellers

47

Top-5 brand share

56%

Open market

40%

  • WeightWorld17%
  • Wehle Sports13%
  • Glow259%
  • RAIBU9%
  • Vital Proteins8%
  • SEAGARDEN5%

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%3%€5K6%€10K9%€14K12%€19K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 35 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -16.7% search growth over the last 90 days.
4K3KPrime Day '24Holiday '24Prime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Reviews

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

What buyers love

Qualität insgesamt20%

“SUPER PRODUKT”

Löslichkeit15%

“Rückstandslose Pulverauflösung”

Gelenkschmerzen6%

“Top Support für Gelenke”

Preis-Leistungs-Verhältnis5%

“Beste Preis/Leistung”

Geschmack insgesamt5%

“Schmeckt”

Kalzium5%

“Bestes Kollagenpulver”

Geschmack5%

“Super geschmack neutral”

Hautgesundheit4%

“Ich habe sehr gute Erfahrungen mit Glow25, mehr Energie, Muskeln und mein Haut ist auch besser geworden”

beworben Vs Tatsächliches Produkt3%

“Gemäss Bestellung”

Inhaltsstoffe – insgesamt2%

“Solides Kollagenprodukt”

What buyers complain about

Geschmack insgesamt17%

“Geschmack grauenhaft”

Geschmack12%

“Neutral Geschmack”

Preis-Leistungs-Verhältnis7%

“recht teuer”

Löslichkeit6%

“Diesmal nicht so gut löslich”

Geruch5%

“Stinkt”

Funktionalität insgesamt3%

“Wirkt nicht wirklich”

Dosierung2%

“Doppelte Menge”

Allergien1%

“Hautirritationen”

Qualität insgesamt1%

“Ich bin nicht sicher wie gut diese Produkte sind”

beworben Vs Tatsächliches Produkt1%

“Vielleicht sollte man bei so umtriebig beworbenen Produkten generell misstrauisch sein”

Top return reasons

Qualität insgesamt40%
Geschmack insgesamt20%
Preis-Leistungs-Verhältnis20%
Geschmack10%
Geruch10%