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54

l arginin

Worth a look

Shows low returns (0.1%), but a concentrated shelf (top 5 take 83% of clicks) keeps it on the watch list.

Market size 87Growth 15Conversion 95Competition 14Returns 100Price range 95Avg price 88Brand share 27Review moat 24Quality gap 45

Returns

Incredible0.1%

return rate — above 6% kills the launch gate

Conversion

Incredible12.3%

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

Price range

Incredible€14.97–€26.02

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

Avg price

Great€20.29

avg listing price — sweet spot $15–$100

Market size

Great€1.5M

€1.5M/yr · 608K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Brand share

Okay89%

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

Review moat

Bad6,334.27

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-20.7%

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

Competition

Bad83%

top-5 click share — a locked-up shelf

Competition

The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 falling

Sellers

6

Top-5 brand share

89%

Open market

6%

  • ProFuel47%
  • natural elements21%
  • NatureWell8%
  • Feel Natural7%
  • GEN GERMAN ELITE NUTRITION6%
  • Nature Love5%
  • Open — no brand owns it (2 brands, 6%)

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%10%€152K20%€304K30%€456K40%€607K1001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 11 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -20.7% search growth over the last 90 days.
25K15KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Reviews

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

What buyers love

Qualität insgesamt31%

“Super Produkt”

Preis-Leistungs-Verhältnis12%

“Günstig”

Blutdruck9%

“Blutdruck stabilisiert”

beworben Vs Tatsächliches Produkt6%

“Macht seinen job”

Effizienz5%

“Wirkt”

Dosierung4%

“Die Kombination aus L-Arginin und L-Citrullin im 1:1-Verhältnis ist aus meiner Sicht ideal und sinnvoll dosiert”

Linderung von Muskelschmerzen3%

“Muskelaufbau”

Herzgesundheit3%

“Reguliert auf natürliche Weise den Blutdruck”

Vitamin2%

“„Sehr gute Vitamine, klare Empfehlung“”

Ernährungs Gehalt2%

“Power Food”

What buyers complain about

Dosierung19%

“6000mg hört sich zunächst unschlagbar an”

Funktionalität insgesamt10%

“keine nennenswerte Wirkung”

Preis-Leistungs-Verhältnis6%

“Geldverschwendung”

beworben Vs Tatsächliches Produkt6%

“Absolut irreführend”

Geruch6%

“Stinkt und Geschmack unerträglich”

Säureregulator/Linderung von Magenschmerzen5%

“Magenprobleme”

Gesamtgröße5%

“Kapseln sind etwas gross”

Blutdruck4%

“aber das der Blutdruck etwas runtergeht, ob es nun nur daran liegt oder nicht kann ich noch nicht sagen.”

Inhaltsstoffe – insgesamt4%

“Heimliche Zutat Siliciumdioxid”

Reguliert die Verdauung4%

“Nach der Einnahme schlecht zu verdauen”